This document reports on two cases of larva migrans occurring in the oral mucosa. Larva migrans is typically caused by parasitic roundworm larvae migrating under the skin and is common in tropical regions. In both cases, patients presented with linear erythematous plaques in the oral mucosa. Biopsies of the lesions revealed parasitic larvae tunnels and inflammatory responses consistent with larva migrans. The lesions resolved after biopsy. Larva migrans can occur in the oral mucosa through contact with contaminated surfaces, though it is rare. These cases add to the limited literature on oral larva migrans.
Larva migrans is caused by larval migration through tissues. It can be cutaneous (skin), ocular (eyes), or visceral (internal organs). Cutaneous larva migrans is caused by animal hookworms in soil, causing burrowing skin lesions. Visceral larva migrans is caused by dog or cat roundworm eggs in soil ingested by humans, where the larvae migrate through organs causing damage. Ocular larva migrans is caused by the same roundworms migrating to the eyes. Diagnosis is based on symptoms, exposure history, and antibody tests. Prevention involves deworming pets and reducing children's contact with contaminated soil.
Larva migrans is caused by larval migration through tissues in the body. It can be cutaneous (skin), ocular (eye), or visceral (internal organs) depending on the location. Cutaneous larva migrans is most often caused by dog or cat hookworm infecting skin through contact with contaminated soil. Visceral larva migrans is caused by ingesting eggs from dog or cat roundworm, with larvae migrating internally and causing organ damage. Symptoms vary by location but may include skin lesions, eye problems, fever and organ swelling. Diagnosis is usually clinical but serology can help with visceral cases. Prevention involves deworming pets and reducing children's contact with potentially contaminated soil or sand
Enterobiasis, also known as pinworm or threadworm, causes perianal itching that is often worse at night and can disrupt sleep. Examination of the anus and application of cellophane tape to the area can reveal the presence of pinworms under a microscope. Treatment involves a single oral dose of an anthelmintic drug for all family members to eliminate the infection from the entire household and prevent reinfection through contaminated surfaces.
1. Pinworms are a common intestinal parasite that inhabit the cecum and colon. The male dies after mating. The female migrates to the anus at night and deposits eggs on the perianal skin, causing itching.
2. Pinworm eggs are oval shaped and contain larvae. When ingested, larvae mature into adult worms in 2-4 weeks. About 1/3 of infections are asymptomatic but most commonly cause irritation and itching.
3. Diagnosis involves cellophane tape tests to detect eggs on the skin or examining stool samples. Proper hygiene including handwashing and surface cleaning can help control spread.
Hookworm is an intestinal parasite that infects humans through skin contact with contaminated soil. It has a life cycle involving eggs passing in feces and hatching into larvae in the soil. Larvae can penetrate human skin, traveling to the lungs and then intestines where they mature into adult worms, feeding on blood and laying more eggs. Symptoms include skin rashes, coughing, diarrhea, and iron-deficiency anemia. Diagnosis involves examining stool samples microscopically or through culture. Treatment is with anthelmintic medications like albendazole or mebendazole. Prevention relies on proper sanitation and hygiene practices to avoid skin exposure to contaminated soil where larvae develop.
Nematodes are roundworms that range in length from 90 μm to 1000 mm. They have an anterior mouth and posterior anus. Their life cycle involves hatching from eggs as larvae and molting through different larval stages to become adults. Pinworm (Enterobius vermicularis) is a common intestinal nematode. Females are 10mm long while males are 3mm. It has a direct life cycle. Pinworm infection is widespread, with over 1 billion cases globally. The parasite's eggs are deposited on the skin at night and spread through contaminated surfaces. Common symptoms include irritation and itching. Diagnosis involves examining adhesive tape touched to the skin under a microscope for eggs. Treatment and prevention
The document summarizes information about myiasis, a parasitic infestation caused by fly larvae. It discusses the classification of myiasis, including different types based on location (e.g. cutaneous, nasal) and flies involved (e.g. bot flies, blow flies, screw flies). Symptoms vary depending on location but may include skin lesions, irritation, pain and secondary infections. Diagnosis involves identifying fly larvae based on morphology and travel history. Treatment focuses on physically removing larvae and preventing further infestation.
This document summarizes information about the parasite Ancylostoma duodenale, commonly known as the old world hookworm. It describes the geographical distribution, morphology, life cycle, pathogenicity, clinical features, prevention, and treatment of the parasite. Key points include that the adult worm lives in the small intestine of humans, eggs are passed in feces and develop into infective larvae in soil, larvae penetrate skin to infect a new host, and infection can cause anemia and gastrointestinal symptoms. Prevention involves proper sanitation and personal protective measures while treatment involves anthelmintic drugs.
Larva migrans is caused by larval migration through tissues. It can be cutaneous (skin), ocular (eyes), or visceral (internal organs). Cutaneous larva migrans is caused by animal hookworms in soil, causing burrowing skin lesions. Visceral larva migrans is caused by dog or cat roundworm eggs in soil ingested by humans, where the larvae migrate through organs causing damage. Ocular larva migrans is caused by the same roundworms migrating to the eyes. Diagnosis is based on symptoms, exposure history, and antibody tests. Prevention involves deworming pets and reducing children's contact with contaminated soil.
Larva migrans is caused by larval migration through tissues in the body. It can be cutaneous (skin), ocular (eye), or visceral (internal organs) depending on the location. Cutaneous larva migrans is most often caused by dog or cat hookworm infecting skin through contact with contaminated soil. Visceral larva migrans is caused by ingesting eggs from dog or cat roundworm, with larvae migrating internally and causing organ damage. Symptoms vary by location but may include skin lesions, eye problems, fever and organ swelling. Diagnosis is usually clinical but serology can help with visceral cases. Prevention involves deworming pets and reducing children's contact with potentially contaminated soil or sand
Enterobiasis, also known as pinworm or threadworm, causes perianal itching that is often worse at night and can disrupt sleep. Examination of the anus and application of cellophane tape to the area can reveal the presence of pinworms under a microscope. Treatment involves a single oral dose of an anthelmintic drug for all family members to eliminate the infection from the entire household and prevent reinfection through contaminated surfaces.
1. Pinworms are a common intestinal parasite that inhabit the cecum and colon. The male dies after mating. The female migrates to the anus at night and deposits eggs on the perianal skin, causing itching.
2. Pinworm eggs are oval shaped and contain larvae. When ingested, larvae mature into adult worms in 2-4 weeks. About 1/3 of infections are asymptomatic but most commonly cause irritation and itching.
3. Diagnosis involves cellophane tape tests to detect eggs on the skin or examining stool samples. Proper hygiene including handwashing and surface cleaning can help control spread.
Hookworm is an intestinal parasite that infects humans through skin contact with contaminated soil. It has a life cycle involving eggs passing in feces and hatching into larvae in the soil. Larvae can penetrate human skin, traveling to the lungs and then intestines where they mature into adult worms, feeding on blood and laying more eggs. Symptoms include skin rashes, coughing, diarrhea, and iron-deficiency anemia. Diagnosis involves examining stool samples microscopically or through culture. Treatment is with anthelmintic medications like albendazole or mebendazole. Prevention relies on proper sanitation and hygiene practices to avoid skin exposure to contaminated soil where larvae develop.
Nematodes are roundworms that range in length from 90 μm to 1000 mm. They have an anterior mouth and posterior anus. Their life cycle involves hatching from eggs as larvae and molting through different larval stages to become adults. Pinworm (Enterobius vermicularis) is a common intestinal nematode. Females are 10mm long while males are 3mm. It has a direct life cycle. Pinworm infection is widespread, with over 1 billion cases globally. The parasite's eggs are deposited on the skin at night and spread through contaminated surfaces. Common symptoms include irritation and itching. Diagnosis involves examining adhesive tape touched to the skin under a microscope for eggs. Treatment and prevention
The document summarizes information about myiasis, a parasitic infestation caused by fly larvae. It discusses the classification of myiasis, including different types based on location (e.g. cutaneous, nasal) and flies involved (e.g. bot flies, blow flies, screw flies). Symptoms vary depending on location but may include skin lesions, irritation, pain and secondary infections. Diagnosis involves identifying fly larvae based on morphology and travel history. Treatment focuses on physically removing larvae and preventing further infestation.
This document summarizes information about the parasite Ancylostoma duodenale, commonly known as the old world hookworm. It describes the geographical distribution, morphology, life cycle, pathogenicity, clinical features, prevention, and treatment of the parasite. Key points include that the adult worm lives in the small intestine of humans, eggs are passed in feces and develop into infective larvae in soil, larvae penetrate skin to infect a new host, and infection can cause anemia and gastrointestinal symptoms. Prevention involves proper sanitation and personal protective measures while treatment involves anthelmintic drugs.
The document discusses several types of parasitic nematodes (roundworms) that infect humans, including Ascaris lumbricoides (the large roundworm), hookworms, Enterobius vermicularis (pinworm), Guinea worms, and Trichinella spiralis (trichina worm). It describes the life cycles, modes of transmission, symptoms, treatment and prevention of infections caused by these parasites.
Guinea worm disease, also known as dracunculiasis, is caused by the nematode Dracunculus medinensis. It is transmitted when people drink water contaminated with infected water fleas. Symptoms appear over a year after infection and include a burning rash and the emergence of the female worm from the skin. Extraction of the worm is a slow process that can take weeks or months. Global eradication efforts have led to a significant reduction in cases, with the disease now only remaining in a few countries in Africa.
1. Filariasis is caused by Wuchereria Bancrofti and manifests as lymphatic obstruction leading to lymphedema and elephantiasis. It is diagnosed by demonstrating microfilariae in blood smears or lymph fluid.
2. Loa-Loa causes transient subcutaneous swellings as the adult worm migrates and can enter the eye. Microfilariae are found in blood during the day.
3. Onchocerca Volvulus causes skin and eye lesions from microfilariae and adults form subcutaneous nodules. It is diagnosed by finding microfilariae in skin snips or eye tissue. Mass ivermectin treatment and
Enterobius vermicularis and ascaris lumbricodesNCRIMS, Meerut
- Ascaris lumbricoides is a roundworm that inhabits the small intestine of humans.
- It produces large numbers of eggs that are passed in feces and can remain viable in soil for months.
- People become infected by ingesting these eggs. The larvae hatch and migrate through the lungs before reaching the intestine where they mature into adult worms.
- Symptoms include abdominal pain, obstruction, and malnutrition. Large numbers of worms can cause complications by blocking bile ducts or other organs. Diagnosis involves finding eggs in stool samples under microscopy.
Strongyloides is a genus of parasitic roundworms that can infect humans and other primates. It causes strongyloidiasis in humans through skin penetration of the infective filariform larval stage. The infection may remain asymptomatic but can become life-threatening if it spreads throughout the body (disseminated) in immunocompromised individuals. Diagnosis involves detecting larvae in stool samples. Treatment involves anthelmintic drugs like ivermectin. Prevention relies on good hygiene practices to avoid skin contact with contaminated soil.
1. Ancylostoma duodenale, commonly known as the old world hookworm, is a parasitic nematode that infects the small intestine.
2. It has a complex life cycle involving eggs passed in feces that develop into infective larvae in soil, which penetrate the skin and migrate through the lungs before reaching the small intestine where they mature into adults.
3. Infection causes hookworm disease, also called ancylostomiasis, resulting in iron-deficiency anemia due to blood loss from the intestinal mucosa where the worms attach.
1. The document describes the life cycles of several parasitic roundworms (nematodes) that infect humans, including Ascaris lumbricoides, Enterobius vermicularis, Trichuris trichiura, Ancylostoma duodenale, Strongyloides stercoralis, and Trichinella spiralis.
2. It provides details on the morphology, life stages, transmission, localization in the host, and clinical manifestations of each parasite.
3. The life cycles generally involve eggs passing in feces and developing into infective larvae in the soil, which then penetrate the skin or are ingested to develop into adult worms that reproduce sexually and release eggs to complete the
The document discusses several nematode parasites including Enterobius vermicularis (pinworm), Dracunculus medinensis (guinea worm), and filarial worms such as Wuchereria bancrofti and Brugia malayi. It provides details on the morphology, life cycles, transmission, symptoms, diagnosis and treatment of these parasites. Key information includes that pinworms infect the intestines and guinea worms emerge from blisters in the skin after a year of maturation, while filarial worms reside in the lymphatic system and bloodstream, being transmitted by mosquitoes.
Rhinosporidiosis is a chronic granulomatous disease caused by Rhinosporidium seeberi, a protistan parasite. It is characterized by polyps in the nasal cavity. It is most commonly seen in southern India and Sri Lanka. The parasite exists in both sporangial and spore forms and has a dimorphic life cycle involving both aquatic and host tissues. Clinical presentation involves polypoidal lesions in the nose that bleed easily. Treatment involves surgical removal of the polyps combined with long term dapsone medication to prevent recurrence.
The document discusses roundworms (nematodes) that are parasitic. It describes 11 known species that fall into two main clades - encapsulated and non-encapsulated. The encapsulated clade parasitizes only mammals, while some non-encapsulated species infect mammals, birds, and reptiles. Two species, T. papuae and T. zimbabwensis, are unique in being able to complete their lifecycle in both warm- and cold-blooded hosts.
This document provides information on various intestinal nematodes including Ascaris lumbricoides, hookworms, and Enterobius vermicularis. It discusses their classification, morphology, life cycles, pathogenesis, clinical features, diagnosis and treatment. Key points include that Ascaris is the largest intestinal nematode infecting humans, hookworms attach to the intestinal wall using teeth or cutting plates to feed on blood, and Enterobius causes rectal pruritus. Laboratory diagnosis involves examining stool samples microscopically for eggs or larvae. Common treatments include mebendazole, albendazole, and pyrantel pamoate.
Onchocerca volvulus is a nematode worm that causes river blindness. It lives in subcutaneous tissues and lymphatic vessels, where the female lays microfilariae that can infect the eyes. These microfilariae are transmitted between humans via black fly vectors. River blindness results in skin and eye lesions that can lead to disfigurement and blindness. Diagnosis involves finding microfilariae in skin snips. Treatment focuses on vector control and repeated doses of ivermectin chemotherapy.
This document discusses Wuchereria bancrofti and Brugia malayi, the causative agents of lymphatic filariasis. It covers the pathogenesis, clinical manifestations, laboratory diagnosis, prevention and treatment of these parasitic roundworm infections. The key points are:
1. W. bancrofti and B. malayi are transmitted by mosquitoes and cause lymphatic obstruction and inflammation leading to lymphedema, elephantiasis, and hydrocele.
2. Clinical manifestations range from asymptomatic infections to lymphedema and elephantiasis of the legs, arms, breasts, and genitals.
3. Microfilariae can be detected by blood
Hookworm affects about 576 million people globally, predominating in tropical and subtropical regions. The two major pathogens that cause hookworm infections are Ancylostoma duodenale and Necator americanus. Symptoms of hookworm infection include skin irritation, coughing and pneumonia during larval migration through the lungs, anemia and abdominal pain once the worms reach the intestines. Diagnosis involves examining stool samples microscopically for eggs. Treatment consists of anthelmintic drugs like albendazole or mebendazole. Prevention relies on sanitation measures, wearing shoes, health education, and treatment of infected individuals.
Enterobius vermicularis, commonly known as the pinworm, is a nematode parasite that infects the human intestine. The parasite has a worldwide distribution. It has a life cycle of 2-4 weeks that involves eggs being deposited around the anus by female pinworms at night and infecting new hosts if the eggs are ingested. Common symptoms of pinworm infection include itching around the anus and vagina, especially at night. Diagnosis involves examining perianal skin scrapings under a microscope for characteristic eggs. Treatment involves anti-parasitic medications and hygiene measures to prevent reinfection.
A nursing lesson plan on myiasis (maggot infestation) is presented over five parts:
1. Classification of myiasis by type (obligate, facultative, accidental) and clinical presentation (cutaneous, orifice, intestinal, wound).
2. The fly life cycle from egg to larva to pupa to adult fly.
3. Signs and symptoms of infestation including redness, pain, swelling and sensation of movement under the skin.
4. Risk factors like wounds, poor hygiene and tropical climate, and nursing interventions such as removing larvae intact, applying petroleum jelly, and prescribing antibiotics.
5. A conclusion is promised to complete the lesson plan
The document describes several nematode parasites including Trichuris trichiura, Trichinella spiralis, Capillaria, Ascaris lumbricoides, Enterobius vermicularis, Wuchereria bancrofti, and Ancylostoma caninum. For each nematode, key defining characteristics, pathogenesis, taxonomy, and life cycle stages are outlined. Morphological differences between nematode adults, eggs, and larvae are discussed. Functions of anatomical structures like phasmids, amphids, and muscles are also explained.
Enterobius vermicularis, commonly known as the pinworm or threadworm, is a parasitic nematode that infects the large intestine of humans. It has a worldwide distribution and is considered the most common human parasite, primarily affecting children. The adult worms live in the cecum and appendix where the female lays eggs around the anal area, causing intense itching and scratching. The eggs can hatch and reinfect the host through autoinfection or contaminate surfaces, transmitting the infection through contaminated hands, food, water, clothing or dust. Diagnosis involves microscopic examination of samples collected from the perianal area to detect eggs. Treatment involves a single dose of anthelmintic medication and repeated treatment to
Enterobius vermicularis, also known as pinworms, are one of the most common intestinal nematodes that inhabit the cecum and colon. The adult female pinworms migrate out of the anus at night to lay eggs on the perianal skin, causing itching. People become infected by ingesting pinworm eggs. Pinworms have a simple lifecycle within the human host without needing an intermediate host. Common symptoms include irritation and itching in the anal area, though many infections are asymptomatic. Pinworm infections are diagnosed via cellophane tape test or NIH swab to detect eggs on the skin. Treatment involves a single dose of anthelmintic medication repeated after two weeks.
Este documento describe el síndrome de migración larvaria cutánea, causado por larvas de nematodos que infectan perros y gatos. Las larvas migran bajo la piel causando lesiones lineales pruriginosas. El ciclo de vida involucra la ingestión de huevos por perros y gatos, la migración de las larvas en el cuerpo humano, y la eliminación de huevos en las heces de los animales, completando así el ciclo.
Este documento trata sobre la larva migrans y la gnatostomiasis. Describe la larva migrans como una dermatosis aguda con distribución lineal y serpiginosa causada por los anquilostomas Ancylostoma Braziliense y Ancylostoma Caninum. Explica los síntomas, tratamientos y tipos de larva migrans como la cutánea, visceral y migratoria. También cubre brevemente la gnatostomiasis.
The document discusses several types of parasitic nematodes (roundworms) that infect humans, including Ascaris lumbricoides (the large roundworm), hookworms, Enterobius vermicularis (pinworm), Guinea worms, and Trichinella spiralis (trichina worm). It describes the life cycles, modes of transmission, symptoms, treatment and prevention of infections caused by these parasites.
Guinea worm disease, also known as dracunculiasis, is caused by the nematode Dracunculus medinensis. It is transmitted when people drink water contaminated with infected water fleas. Symptoms appear over a year after infection and include a burning rash and the emergence of the female worm from the skin. Extraction of the worm is a slow process that can take weeks or months. Global eradication efforts have led to a significant reduction in cases, with the disease now only remaining in a few countries in Africa.
1. Filariasis is caused by Wuchereria Bancrofti and manifests as lymphatic obstruction leading to lymphedema and elephantiasis. It is diagnosed by demonstrating microfilariae in blood smears or lymph fluid.
2. Loa-Loa causes transient subcutaneous swellings as the adult worm migrates and can enter the eye. Microfilariae are found in blood during the day.
3. Onchocerca Volvulus causes skin and eye lesions from microfilariae and adults form subcutaneous nodules. It is diagnosed by finding microfilariae in skin snips or eye tissue. Mass ivermectin treatment and
Enterobius vermicularis and ascaris lumbricodesNCRIMS, Meerut
- Ascaris lumbricoides is a roundworm that inhabits the small intestine of humans.
- It produces large numbers of eggs that are passed in feces and can remain viable in soil for months.
- People become infected by ingesting these eggs. The larvae hatch and migrate through the lungs before reaching the intestine where they mature into adult worms.
- Symptoms include abdominal pain, obstruction, and malnutrition. Large numbers of worms can cause complications by blocking bile ducts or other organs. Diagnosis involves finding eggs in stool samples under microscopy.
Strongyloides is a genus of parasitic roundworms that can infect humans and other primates. It causes strongyloidiasis in humans through skin penetration of the infective filariform larval stage. The infection may remain asymptomatic but can become life-threatening if it spreads throughout the body (disseminated) in immunocompromised individuals. Diagnosis involves detecting larvae in stool samples. Treatment involves anthelmintic drugs like ivermectin. Prevention relies on good hygiene practices to avoid skin contact with contaminated soil.
1. Ancylostoma duodenale, commonly known as the old world hookworm, is a parasitic nematode that infects the small intestine.
2. It has a complex life cycle involving eggs passed in feces that develop into infective larvae in soil, which penetrate the skin and migrate through the lungs before reaching the small intestine where they mature into adults.
3. Infection causes hookworm disease, also called ancylostomiasis, resulting in iron-deficiency anemia due to blood loss from the intestinal mucosa where the worms attach.
1. The document describes the life cycles of several parasitic roundworms (nematodes) that infect humans, including Ascaris lumbricoides, Enterobius vermicularis, Trichuris trichiura, Ancylostoma duodenale, Strongyloides stercoralis, and Trichinella spiralis.
2. It provides details on the morphology, life stages, transmission, localization in the host, and clinical manifestations of each parasite.
3. The life cycles generally involve eggs passing in feces and developing into infective larvae in the soil, which then penetrate the skin or are ingested to develop into adult worms that reproduce sexually and release eggs to complete the
The document discusses several nematode parasites including Enterobius vermicularis (pinworm), Dracunculus medinensis (guinea worm), and filarial worms such as Wuchereria bancrofti and Brugia malayi. It provides details on the morphology, life cycles, transmission, symptoms, diagnosis and treatment of these parasites. Key information includes that pinworms infect the intestines and guinea worms emerge from blisters in the skin after a year of maturation, while filarial worms reside in the lymphatic system and bloodstream, being transmitted by mosquitoes.
Rhinosporidiosis is a chronic granulomatous disease caused by Rhinosporidium seeberi, a protistan parasite. It is characterized by polyps in the nasal cavity. It is most commonly seen in southern India and Sri Lanka. The parasite exists in both sporangial and spore forms and has a dimorphic life cycle involving both aquatic and host tissues. Clinical presentation involves polypoidal lesions in the nose that bleed easily. Treatment involves surgical removal of the polyps combined with long term dapsone medication to prevent recurrence.
The document discusses roundworms (nematodes) that are parasitic. It describes 11 known species that fall into two main clades - encapsulated and non-encapsulated. The encapsulated clade parasitizes only mammals, while some non-encapsulated species infect mammals, birds, and reptiles. Two species, T. papuae and T. zimbabwensis, are unique in being able to complete their lifecycle in both warm- and cold-blooded hosts.
This document provides information on various intestinal nematodes including Ascaris lumbricoides, hookworms, and Enterobius vermicularis. It discusses their classification, morphology, life cycles, pathogenesis, clinical features, diagnosis and treatment. Key points include that Ascaris is the largest intestinal nematode infecting humans, hookworms attach to the intestinal wall using teeth or cutting plates to feed on blood, and Enterobius causes rectal pruritus. Laboratory diagnosis involves examining stool samples microscopically for eggs or larvae. Common treatments include mebendazole, albendazole, and pyrantel pamoate.
Onchocerca volvulus is a nematode worm that causes river blindness. It lives in subcutaneous tissues and lymphatic vessels, where the female lays microfilariae that can infect the eyes. These microfilariae are transmitted between humans via black fly vectors. River blindness results in skin and eye lesions that can lead to disfigurement and blindness. Diagnosis involves finding microfilariae in skin snips. Treatment focuses on vector control and repeated doses of ivermectin chemotherapy.
This document discusses Wuchereria bancrofti and Brugia malayi, the causative agents of lymphatic filariasis. It covers the pathogenesis, clinical manifestations, laboratory diagnosis, prevention and treatment of these parasitic roundworm infections. The key points are:
1. W. bancrofti and B. malayi are transmitted by mosquitoes and cause lymphatic obstruction and inflammation leading to lymphedema, elephantiasis, and hydrocele.
2. Clinical manifestations range from asymptomatic infections to lymphedema and elephantiasis of the legs, arms, breasts, and genitals.
3. Microfilariae can be detected by blood
Hookworm affects about 576 million people globally, predominating in tropical and subtropical regions. The two major pathogens that cause hookworm infections are Ancylostoma duodenale and Necator americanus. Symptoms of hookworm infection include skin irritation, coughing and pneumonia during larval migration through the lungs, anemia and abdominal pain once the worms reach the intestines. Diagnosis involves examining stool samples microscopically for eggs. Treatment consists of anthelmintic drugs like albendazole or mebendazole. Prevention relies on sanitation measures, wearing shoes, health education, and treatment of infected individuals.
Enterobius vermicularis, commonly known as the pinworm, is a nematode parasite that infects the human intestine. The parasite has a worldwide distribution. It has a life cycle of 2-4 weeks that involves eggs being deposited around the anus by female pinworms at night and infecting new hosts if the eggs are ingested. Common symptoms of pinworm infection include itching around the anus and vagina, especially at night. Diagnosis involves examining perianal skin scrapings under a microscope for characteristic eggs. Treatment involves anti-parasitic medications and hygiene measures to prevent reinfection.
A nursing lesson plan on myiasis (maggot infestation) is presented over five parts:
1. Classification of myiasis by type (obligate, facultative, accidental) and clinical presentation (cutaneous, orifice, intestinal, wound).
2. The fly life cycle from egg to larva to pupa to adult fly.
3. Signs and symptoms of infestation including redness, pain, swelling and sensation of movement under the skin.
4. Risk factors like wounds, poor hygiene and tropical climate, and nursing interventions such as removing larvae intact, applying petroleum jelly, and prescribing antibiotics.
5. A conclusion is promised to complete the lesson plan
The document describes several nematode parasites including Trichuris trichiura, Trichinella spiralis, Capillaria, Ascaris lumbricoides, Enterobius vermicularis, Wuchereria bancrofti, and Ancylostoma caninum. For each nematode, key defining characteristics, pathogenesis, taxonomy, and life cycle stages are outlined. Morphological differences between nematode adults, eggs, and larvae are discussed. Functions of anatomical structures like phasmids, amphids, and muscles are also explained.
Enterobius vermicularis, commonly known as the pinworm or threadworm, is a parasitic nematode that infects the large intestine of humans. It has a worldwide distribution and is considered the most common human parasite, primarily affecting children. The adult worms live in the cecum and appendix where the female lays eggs around the anal area, causing intense itching and scratching. The eggs can hatch and reinfect the host through autoinfection or contaminate surfaces, transmitting the infection through contaminated hands, food, water, clothing or dust. Diagnosis involves microscopic examination of samples collected from the perianal area to detect eggs. Treatment involves a single dose of anthelmintic medication and repeated treatment to
Enterobius vermicularis, also known as pinworms, are one of the most common intestinal nematodes that inhabit the cecum and colon. The adult female pinworms migrate out of the anus at night to lay eggs on the perianal skin, causing itching. People become infected by ingesting pinworm eggs. Pinworms have a simple lifecycle within the human host without needing an intermediate host. Common symptoms include irritation and itching in the anal area, though many infections are asymptomatic. Pinworm infections are diagnosed via cellophane tape test or NIH swab to detect eggs on the skin. Treatment involves a single dose of anthelmintic medication repeated after two weeks.
Este documento describe el síndrome de migración larvaria cutánea, causado por larvas de nematodos que infectan perros y gatos. Las larvas migran bajo la piel causando lesiones lineales pruriginosas. El ciclo de vida involucra la ingestión de huevos por perros y gatos, la migración de las larvas en el cuerpo humano, y la eliminación de huevos en las heces de los animales, completando así el ciclo.
Este documento trata sobre la larva migrans y la gnatostomiasis. Describe la larva migrans como una dermatosis aguda con distribución lineal y serpiginosa causada por los anquilostomas Ancylostoma Braziliense y Ancylostoma Caninum. Explica los síntomas, tratamientos y tipos de larva migrans como la cutánea, visceral y migratoria. También cubre brevemente la gnatostomiasis.
The document contains information about an exam including:
- Instructions for answering questions from left to right and writing the question number before answering.
- The exam contains 6 questions worth 5 marks each for a total of 30 marks.
- Example questions are provided about disease transmission mechanisms, parasitic diseases transmitted by flies, malaria complications, leishmaniasis classification and causative parasites, helminths transmitted by autoinfection, and parasitic causes of various diseases.
An outbreak of cutaneous larva migrans occurred at a children's summer camp in Miami, Florida in 2006. A total of 22 campers and staff were diagnosed. The outbreak was traced to a sandbox in the playground area that was contaminated with animal feces containing hookworm larvae. Campers who played barefoot in the sandbox were most at risk. Public health officials worked with the camp to remove the contaminated sand and prevent further infections.
El documento describe la larva migrans, una dermatosis causada por parásitos móviles como Ancylostoma caninum y Ancylostoma braziliense. Define los agentes etiológicos, el cuadro clínico caracterizado por trayectorias migratorias pruriginosas de varios centímetros, y los métodos de prevención y tratamiento como la desparasitación de mascotas e ivermectina.
Este documento resume las características de la larva migrans visceral y cutánea. La larva migrans visceral ocurre cuando se ingieren huevos de Toxocara contaminados y las larvas migran a través de varios órganos, causando síntomas como fiebre, hepatoesplenomegalia y afectación pulmonar y neurológica. La larva migrans cutánea ocurre cuando las larvas penetran la piel a través de heridas contaminadas, causando erupciones serpiginosas pruriginosas. Ambas enfermedades se tr
This document describes ascariasis, caused by the roundworm Ascaris lumbricoides. It is most common in children in tropical areas with poor sanitation. The worms live in the small intestine and the female can lay up to 200,000 eggs daily that are passed in feces. When eggs are ingested, they hatch in the intestines releasing larvae that migrate through organs before maturing in the lungs and being swallowed to the intestines. Heavy infections can cause malnutrition, obstruction, and other complications. Diagnosis involves finding eggs in stool or worms. Treatment includes mebendazole or pyrantel pamoate. Prevention relies on proper sanitation and hygiene.
1. Lymphatic filariasis is caused by parasitic roundworms Wuchereria bancrofti and Brugia malayi, which are transmitted by mosquitoes.
2. India accounts for 38% of the global burden of lymphatic filariasis, with over 473 million people living in endemic areas and 31 million microfilaria carriers.
3. The life cycle of W. bancrofti involves microfilariae infecting humans and being taken up by mosquitoes during blood feeding, where they develop over 10-14 days before infecting another human.
Filariasis is caused by thread-like parasitic roundworms that are spread by mosquitoes and black flies. The worms live in the lymphatic system and other parts of the body, and the females release microfilariae that circulate in the bloodstream. Over time, this can lead to elephantiasis with thickening of the skin. Diagnosis involves examining blood slides for microfilariae at specific times of day. Treatment includes medications that kill the microfilariae like diethylcarbamazine, ivermectin, and doxycycline. Controlling mosquitoes is also important for preventing the spread of filarial parasites.
Abscess and phlegmon in maxillofacial region odontogenic infections-somebodyma
This document discusses orofacial infections, including types, causes, microbiology, spread, and treatment. It focuses on odontogenic infections, which are usually polymicrobial involving both aerobic and anaerobic bacteria. Infections can spread locally through tissue planes or lymph nodes, and potentially through blood vessels. The document describes specific facial spaces like the canine fossa and buccal space that can become infected, outlining clinical signs, drainage routes, and surgical treatment approaches for each.
Management of the infections of the masticatory spacesMohammed Alhayani
Student report about Management of the infections of the masticatory spaces gathered and collected by Mohammed Alhayani
References
- JR Hupp, E Ellis, MR Tucker. Contemporary oral and maxillofacial surgery. 7th ed. Missouri: Mosby Elsevier; 2008
- Deepak Kademani, Paul Tiwana. Atlas of Oral and Maxillofacial Surgery. Illustrated. Elsevier Health Sciences; 2015
- Louis H. Berman, Kenneth M. Hargreaves. Cohen's Pathways of the Pulp Expert Consult. 11th ed. Elsevier Health Sciences; 2015
- Fragiskos D. Fragiskos. Oral Surgery illustrated. Springer Science & Business Media; 2007
- A. Omar Abubaker, Din Lam. Oral and Maxillofacial Surgery Secrets. 3ed. Elsevier Health Sciences; 2015
- J Fagan, J Morkel. Surgical drainage of neck abscesses. The Open Access Atlas of Otolaryngology. 2017
- Moon-Gi Choi. Modified drainage of submasseteric space abscess. J Korean Assoc Oral Maxillofac Surg. 2017
This document provides an overview of space infections in the head and neck region. It begins with a brief history and then covers topics such as the anatomy of fascial spaces, host defense and infection, microbiology and treatment of space infections, classification of fascial spaces, diagnosis, complications and recent advances. Specific spaces discussed include the buccal, canine, submandibular, sublingual, submental and Ludwig's angina. For each space, the document describes the etiology, clinical features, contents, neighboring spaces and treatment approach.
Fibroma odontogeno del mascellare superiore: caso clinico e revisione della l...MerqurioEditore_redazione
This case report describes a 46-year-old male with an odontogenic fibromyxoma in the right maxilla. Odontogenic fibromyxomas are rare benign tumors that usually occur in the mandible. Radiological examination with CT revealed expansion of the right maxillary sinus walls and obstruction of the sinus cavity. Histopathological examination confirmed the diagnosis of fibromyxoma. The tumor was surgically removed via enucleation and curettage. A review of the literature found that maxillary fibromyxomas are rare, with this case being the 30th reported case in the maxilla. Complete surgical removal is important to prevent recurrence of these tumors.
Furuncularmyiasis in a Child Caused by Flesh Fly (Wohlfahrtia magnifica) and ...inventionjournals
We report the case of a two-year-old boy with hyper eosinophilia who presented with a swelling on his left scapular that had persisted for more than three weeks. A second-stage larva of Wohlfahrtia magnifica was found with associated bacterial organisms such as Proteus vulgaris, Staphylococcus aureus and Staphylococcus epidermidis, leading to the diagnosis of cutaneous myiasis. Following removal of the larva and secondary bacterial therapy, the clinical and hematological manifestations returned to normal. Diagnosis of myiasis and associated secondary infections should always be kept in mind in the event of clinical signs of furuncular lesions, pain, fever, exudation which may be accompanied by eosinophilia.
A comprehensive description of leischmaniasis with its types, transmission, epidemiology, pathogenesis, prevention and control. It also includes details regarding lab diagnosis, disease agent, vector and host.
This document discusses various spaces in the mandible that can become infected from dental infections, including the submental, sublingual, submandibular, masseteric, pterygomandibular, and temporal spaces. It describes the anatomy and boundaries of each space, potential causes of infection, clinical signs and symptoms, and surgical approaches for incision and drainage. Infections can spread between spaces if not properly treated.
1. Vector-borne diseases are transmitted by arthropods like mosquitoes, flies, ticks, and mites or other living carriers like snails. Common vector-borne diseases include malaria, dengue, yellow fever, and lymphatic filariasis.
2. Lymphatic filariasis is caused by infection with nematode worms transmitted via mosquito bites. It causes swelling in the limbs and genitals.
3. Leishmaniasis is caused by protozoa of the genus Leishmania transmitted by the bite of infected sand flies. It includes visceral leishmaniasis and cutaneous forms.
4. Scabies is caused by the mite S
1. Vector-borne diseases are transmitted by arthropods like mosquitoes, flies, ticks, and mites or other living carriers like snails. Common vector-borne diseases include malaria, dengue, yellow fever, and lymphatic filariasis.
2. Lymphatic filariasis is caused by infection with nematode worms transmitted via mosquito bites. It causes swelling in the limbs and genitals.
3. Leishmaniasis is caused by protozoa of the genus Leishmania transmitted by the bite of infected sand flies. It includes visceral leishmaniasis and cutaneous forms.
4. Scabies is caused by the mite S
nd invade the genital ridges in the sixth week of
development. here they form primitive sex cords. in
the absence of tdf, medullary cords disappear and
get replaced by a vascular stroma (ovarian medulla).
cortical cords develop and surround one or more
primitive germ cells. the germ cells subsequently
develop into oogonia, while the surrounding epithelial
cells form the follicular cells. this differentiates
undifferentiated gonads into ovaries. stroma of ovary
develops from basal mesenchyme. granulosa and theca
cells develop from celomic epithelium.
development of genital ducts
development of genital duct system and the external
genitalia occurs under the influence of hormones
circulating in the fetus. sertoli cells in the fetal testes
produce a nonsteroidal substance known as müllerian
inhibiting substance (mis) that causes regression of
müllerian ducts. androgen from the fetal testes causes
masculinization of external genitalia. in the absence of
mis, müllerian ducts develop and mesonephric duct
system regresses. in the absence of androgen, external
genitalia differentiate into female phenotype. the
müllerian duct develops between the fifth and sixth
weeks lateral to intermediate cell mass and wolffian
duct. the müllerian duct has the following three parts:
•cranial vertical portion that opens into celomic
cavity. later it differentiates into fallopian tubes.
•horizontal part crosses the mesonephric duct.
•caudal vertical part that fuses with its partner
from opposite side. this fused part later differ
entiates into uterus, cervix, and upper one-third
of the vagina.
the dorsal celomic epithelium (which forms
müllerian duct) remains open at its site of origin and
ultimately forms the fimbriated ends of the fallopian
tubes. at their point of origin, each of the müllerian
ducts forms a solid bud. each bud penetrates the
mesenchyme lateral and parallel to the wolffian duct.
as the solid buds elongate, a lumen appears in the
cranial part, beginning at each celomic opening. the
caudal end of each müllerian duct crosses the way
1) Anthrax is a bacterial infection caused by Bacillus anthracis that can enter the human body through the skin, lungs, or intestines.
2) It primarily affects cattle, sheep and goats but people can be infected through contact with infected animals or contaminated animal products.
3) The document then describes the clinical presentation of cutaneous (skin), inhalation, and intestinal anthrax as well as the pathology and epidemiology of anthrax infections.
1. Buccal, canine, palatinal, submental, submandibular, sublingual and other superficial abscesses originate from infected teeth and progress through four stages from asymptomatic infection to localized pus formation and abscess.
2. Abscesses are diagnosed through history, examination including palpation, and imaging when needed. Treatment involves incision and drainage of pus, removal of the infecting source, and antibiotics.
3. Specific abscesses are named according to their location and have characteristic signs, symptoms, and treatments. The document describes several types of head and neck abscesses in detail.
Spread of Oral Infection (2009)
Copyright 2009 by Department of Oral Medicine
University of Dental Medicine, Yangon
Feel free to request to take it down this slide if you are copyright owner.
Dr. Ahmed M. Adawy, Professor Emeritus, Dep. Oral & Maxillofacial Surgery. Former Dean, Faculty of Dental Medicine
Al-Azhar University. The Pathogenesis of infection in oro-facial region due to odontogenic origin is a common clinical issue. bacterial invasion to deeper tissues usually a spread from diseased dental pulp. Recent evidences indicated a multi-microbial nature. The spread of infection is governed by the thickness of the investing bone and the anatomical relation of the tooth root to the attached muscle. Infection could spread from one facial space to another, and the condition may be aggravated to life threatening situations.
This document provides an overview of fascial space infections, including their classification, stages, microbiology, and management. It discusses various fascial spaces of the head and neck region that can become infected, including the maxillary spaces (canine, palatal, infratemporal), mandibular spaces (submental, submandibular, sublingual), and secondary spaces (lateral pharyngeal, retropharyngeal). It also outlines the progression of odontogenic infections and signs of cellulitis versus abscess formation. The principles of treatment involve determining infection severity, surgical drainage, medical support, and antibiotic selection.
This document provides an overview of fascial space infections, including their classification, stages, microbiology, and management. It discusses various fascial spaces of the head and neck region that can become infected, including the maxillary spaces (canine, palatal, infratemporal), mandibular spaces (submental, submandibular, sublingual), and secondary spaces (lateral pharyngeal, retropharyngeal). It also outlines the progression of odontogenic infections and signs of cellulitis versus abscess formation. The principles of treatment involve determining infection severity, surgical drainage, medical support, and antibiotic selection.
This document provides an overview of fascial space infections, including their classification, stages, microbiology, and management. It discusses various fascial spaces of the head and neck region that can become infected, including the maxillary spaces (canine, palatal, infratemporal), mandibular spaces (submental, submandibular, sublingual), and secondary spaces (lateral pharyngeal, retropharyngeal). It also outlines the progression of odontogenic infections and signs of cellulitis versus abscess formation. The principles of treatment involve determining infection severity, surgical drainage, medical support, and antibiotic selection.
• Actinomyces species are classified as anaerobic, gram positive and filamentous bacteria.
• It is a chronic granulomatous suppurative and fibrosing disease caused by anaerobic or microaerophilic gram-positive nonacid fast, branched filamentous bacteria.
• Most of the species isolated from actinomycotic lesions have been identified as A. israelii, A. viscosus, A. odontolyticus, A.naeslundii or A. meyeri.
• These microorganisms have been identified in dental plaque, dental calculus, necrotic pulp, and tonsils.
• The usual pattern of this disease is one characterized chiefly by the formation of abscesses that tend to drain by the formation of sinus tracts.
• pus from the abscesses is examined on a clean glass slide, it shows the typical ‘sulfur granules’ or colonies of organisms, which appear in the suppurative material as tiny, yellow grains.
• Another infection that produces this type of sulfur granules is botryomycosis.
This document describes Leishmania donovani, the parasite that causes visceral leishmaniasis or kala-azar. It discusses the parasite's classification, life cycle within human and sand fly hosts, geographic distribution, morphology in amastigote and promastigote forms, transmission via phlebotomine sand fly bites, pathology in organs like the spleen and liver, clinical features of kala-azar infection, and treatments like liposomal amphotericin B and miltefosine. It also briefly summarizes Leishmania species complexes that cause cutaneous and mucocutaneous leishmaniasis.
Two cases of Toenail Chaetomycosis from district Jammu (India).inventionjournals
International Journal of Pharmaceutical Science Invention (IJPSI) is an international journal intended for professionals and researchers in all fields of Pahrmaceutical Science. IJPSI publishes research articles and reviews within the whole field Pharmacy and Pharmaceutical Science, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
O documento repete várias vezes os autores, título, editora e páginas de um livro sobre emergências em estomatologia publicado em 2006 no Rio de Janeiro.
Técnicas anestésicas dentistica uni foa 2012-01-pedroLucas Almeida Sá
O documento discute técnicas anestésicas voltadas para odontologia, incluindo procedimentos anestésicos, considerações sobre anestesias, bloqueios de nervos e anestesias infiltrativas. É fornecida informação sobre diferentes anestésicos locais e vasoconstritores, incluindo dosagens, assim como potenciais acidentes e complicações.
O documento discute diversos tipos de cistos da cavidade oral e regiões adjacentes, incluindo cistos de desenvolvimento, odontossgênicos e não-odontogênicos. São descritos os cistos nasolabial, globulomaxilar, palatino mediano, do ducto nasopalatino, tireoglosso e linfoepitelial, com suas características clínicas, radiográficas e histopatológicas.
O documento descreve a técnica radiográfica periapical do paralelismo, incluindo seu histórico, princípios e vantagens. Ele também descreve vários tipos de alterações que podem ser vistas em radiografias dentais, como lesões de cárie, erosão, reabsorção radicular e hipercementose, e explica como cada uma delas aparece na imagem radiográfica.
Anatomiadento maxilo-mandibular-110429050346-phpapp02Lucas Almeida Sá
O documento descreve as características radiográficas dos principais tecidos e estruturas anatômicas da região bucal e face, incluindo esmalte, dentina, cemento, osso alveolar, seio maxilar, tubérculos mentais e linha oblíqua externa da mandíbula.
O documento descreve as estruturas anatômicas visíveis em radiografias da maxila e mandíbula, incluindo esmalte, dentina, polpa, cemento, câmara pulpar, canais radiculares, lâmina dura, crista óssea alveolar, espaço pericementário, osso alveolar, seio maxilar, septo nasal, Y invertido de Ennis, forame incisivo, hâmulo pterigóideo, túber da maxila, processo coronóide da mandíbula, processo zigomático da max
O documento discute a técnica radiográfica periapical, explicando como posicionar corretamente o paciente e o filme para obter imagens detalhadas das estruturas dentárias e região periapical. A técnica da bissetriz é descrita como a mais precisa, envolvendo ângulos verticais e horizontais corretos para o feixe de raios-X. Também são comparadas as vantagens e desvantagens das técnicas da bissetriz e do paralelismo.
La Unión Europea ha anunciado nuevas sanciones contra Rusia por su invasión de Ucrania. Las sanciones incluyen prohibiciones de viaje y congelamiento de activos para más funcionarios rusos, así como restricciones a las importaciones de productos rusos de acero y tecnología. Los líderes de la UE esperan que estas medidas adicionales aumenten la presión sobre Rusia para poner fin a su guerra contra Ucrania.
Slm.ins.m3 00-manual-anestesiologia-e-terapeuticaLucas Almeida Sá
1. O documento apresenta protocolos de anestesia, terapêutica medicamentosa e controle de infecções em odontologia da Faculdade São Leopoldo Mandic.
2. São descritas técnicas anestésicas como infiltração, bloqueios de nervos e soluções recomendadas, além de protocolos para controle de dor e ansiedade.
3. Também são apresentadas normas para prescrição de medicamentos, uso profilático de antibióticos e protocolo para profilaxia de endocardite infecciosa.
O documento discute as bases anestésicas locais utilizadas em odontologia, incluindo lidocaína, prilocaína, mepivacaína, bupivacaína e articaina. Também aborda os diferentes tipos de vasoconstritores usados para aumentar a duração da anestesia, como adrenalina, noradrenalina e fenilefrina, bem como suas propriedades e indicações. Resume ainda as principais características e associações comerciais de cada base anestésica.
Este documento apresenta uma aula sobre anestesia local em odontologia ministrada pelo Prof. Dr. Carlos Neves. O documento discute os objetivos da aula, faz uma breve revisão da anatomia da cabeça e pescoço relevante para anestesia local, classifica os tipos de anestesia local, descreve as principais técnicas anestésicas e indicações, e discute as desvantagens de algumas técnicas.
The document discusses the anatomy and innervation of the maxilla and mandible. It describes the nerves that supply different regions, including the infraorbital nerve which provides innervation to the upper teeth and gums, and the mandibular nerve which divides into an anterior and posterior division to innervate muscles and the lower teeth. Diagrams show the branches and distribution of the various nerves involved in innervating the maxilla and mandible.
O documento discute os requisitos do centro cirúrgico, incluindo a sala de operações, iluminação, ventilação, vestuário e etiqueta. Descreve os detalhes da sala de operações, como janelas, portas, mobiliário e iluminação. Também explica a importância da ventilação para remover bactérias, e o vestuário usado para limitar a contaminação, incluindo gorro, máscara, roupas e propés.
A União Europeia está enfrentando desafios sem precedentes devido à pandemia de COVID-19 e à invasão russa da Ucrânia. Isso destacou a necessidade de autonomia estratégica da UE em áreas como energia, defesa e tecnologia digital para proteger seus cidadãos e valores fundamentais. Ao mesmo tempo, a UE deve manter a cooperação com parceiros que compartilham os mesmos princípios para enfrentar essas ameaças globais.
1) O documento discute como escolher o anestésico local adequado para diferentes situações na clínica odontológica diária, levando em conta fatores como o tempo necessário de anestesia, risco de automutilação e nível esperado de dor pós-operatória.
2) É sugerido que o profissional mantenha mais de um tipo de solução anestésica local no consultório, incluindo soluções com e sem vasoconstritor.
3) A mepivacaína sem vasoconstritor é indicada para procedimentos que requerem anestesia de cur
Anestésicos locais em odontologia uma revisão de literaturaLucas Almeida Sá
O documento apresenta uma revisão sobre anestésicos locais utilizados em odontologia, abordando aspectos como a farmacologia, principais drogas empregadas e suas propriedades. Discute a ação, administração e efeitos da lidocaína, prilocaína, mepivacaína e outras substâncias anestésicas comumente usadas em procedimentos odontológicos.
O documento discute a teoria das inteligências múltiplas de Howard Gardner, que propõe que existem vários tipos de inteligência ao invés de uma única inteligência geral. Gardner identifica nove tipos principais de inteligência: linguística, lógico-matemática, espacial, corporal-cinestésica, musical, interpessoal, intrapessosal, naturalista e existencial. A teoria defende que todos nascem com o potencial para desenvolver essas diferentes inteligências de forma única.
[1] O documento discute o conceito de identidade em psicologia, definindo-a como um processo de construção permanente e transformação que permite que cada pessoa se reconheça como única. [2] A identidade se forma inicialmente a partir da diferenciação entre o eu e a mãe e posterior identificação com outros, e pode passar por crises em momentos de grande mudança. [3] O estigma social pode afetar a identidade quando atributos negativamente valorizados são incorporados, como preconceitos.
O documento discute a importância dos grupos na vida social e como as pessoas se organizam em grupos para viverem juntas de forma eficiente. Apresenta os conceitos de institucionalização, organização e grupo, e como esses elementos se relacionam na construção da realidade social. Também aborda temas como a dinâmica grupal, liderança, tipos de grupos e a produção grupal.
O documento discute a importância dos afetos no comportamento humano e como eles se expressam através de desejos, sonhos e fantasias. Os afetos determinam nosso comportamento em muitas situações e incluem emoções como alegria, tristeza e medo, além de sentimentos mais duradouros como gratidão e lealdade. A vida afetiva constitui um aspecto fundamental da vida psíquica humana.
STUDIES IN SUPPORT OF SPECIAL POPULATIONS: GERIATRICS E7shruti jagirdar
Unit 4: MRA 103T Regulatory affairs
This guideline is directed principally toward new Molecular Entities that are
likely to have significant use in the elderly, either because the disease intended
to be treated is characteristically a disease of aging ( e.g., Alzheimer's disease) or
because the population to be treated is known to include substantial numbers of
geriatric patients (e.g., hypertension).
“Psychiatry and the Humanities”: An Innovative Course at the University of Mo...Université de Montréal
“Psychiatry and the Humanities”: An Innovative Course at the University of Montreal Expanding the medical model to embrace the humanities. Link: https://www.psychiatrictimes.com/view/-psychiatry-and-the-humanities-an-innovative-course-at-the-university-of-montreal
The biomechanics of running involves the study of the mechanical principles underlying running movements. It includes the analysis of the running gait cycle, which consists of the stance phase (foot contact to push-off) and the swing phase (foot lift-off to next contact). Key aspects include kinematics (joint angles and movements, stride length and frequency) and kinetics (forces involved in running, including ground reaction and muscle forces). Understanding these factors helps in improving running performance, optimizing technique, and preventing injuries.
Histololgy of Female Reproductive System.pptxAyeshaZaid1
Dive into an in-depth exploration of the histological structure of female reproductive system with this comprehensive lecture. Presented by Dr. Ayesha Irfan, Assistant Professor of Anatomy, this presentation covers the Gross anatomy and functional histology of the female reproductive organs. Ideal for students, educators, and anyone interested in medical science, this lecture provides clear explanations, detailed diagrams, and valuable insights into female reproductive system. Enhance your knowledge and understanding of this essential aspect of human biology.
Travel Clinic Cardiff: Health Advice for International TravelersNX Healthcare
Travel Clinic Cardiff offers comprehensive travel health services, including vaccinations, travel advice, and preventive care for international travelers. Our expert team ensures you are well-prepared and protected for your journey, providing personalized consultations tailored to your destination. Conveniently located in Cardiff, we help you travel with confidence and peace of mind. Visit us: www.nxhealthcare.co.uk
Summer is a time for fun in the sun, but the heat and humidity can also wreak havoc on your skin. From itchy rashes to unwanted pigmentation, several skin conditions become more prevalent during these warmer months.
5-hydroxytryptamine or 5-HT or Serotonin is a neurotransmitter that serves a range of roles in the human body. It is sometimes referred to as the happy chemical since it promotes overall well-being and happiness.
It is mostly found in the brain, intestines, and blood platelets.
5-HT is utilised to transport messages between nerve cells, is known to be involved in smooth muscle contraction, and adds to overall well-being and pleasure, among other benefits. 5-HT regulates the body's sleep-wake cycles and internal clock by acting as a precursor to melatonin.
It is hypothesised to regulate hunger, emotions, motor, cognitive, and autonomic processes.
Are you looking for a long-lasting solution to your missing tooth?
Dental implants are the most common type of method for replacing the missing tooth. Unlike dentures or bridges, implants are surgically placed in the jawbone. In layman’s terms, a dental implant is similar to the natural root of the tooth. It offers a stable foundation for the artificial tooth giving it the look, feel, and function similar to the natural tooth.
Pictorial and detailed description of patellar instability with sign and symptoms and how to diagnose , what investigations you should go with and how to approach with treatment options . I have presented this slide in my 2nd year junior residency in orthopedics at LLRM medical college Meerut and got good reviews for it
After getting it read you will definitely understand the topic.
1. Braz Dent J 22(2) 2011
166 J.H. Damante et al.
INTRODUCTION
Domesticatedorwildanimalshavemanyparasites
whose infectious larvae are capable of completing their
lifecycleonlyinsidetheirnaturalhost.Whentheselarvae
infectadifferenthost,includinghumans,theyareusually
not able to grow properly. In these cases, the larvae may
migrate through the visceral or subcutaneous tissue,
causing lesions in the skin or mucosa (1). Therefore, the
term Larva migrans is used to describe the pathologies
caused by migration of larvae that usually do not infect
the human organism.
Visceral Larva migrans is rarer and normally
affects the liver in conjunction with pulmonary
infiltration.ItisusuallycausedbyalarvaoftheToxocara
genus (2). On the other hand, cutaneous Larva migrans
is characterized by erythematous, pruriginous, and
serpiginous lesions that are similar to a sinuous snake-
liketrace(3). Cutaneous Larva migrans is a self-limited
disease because the larva cannot mature in the human
Larva migrans in the Oral Mucosa:
Report of Two Cases
José Humberto DAMANTE1
Luiz Eduardo Montenegro CHINELLATO1
Fernando Toledo de OLIVEIRA1
Cleverson Teixeira SOARES2
Raul Negrão FLEURY2
1Department of Oral Medicine, Bauru Dental School, USP - University of São Paulo, Bauru, São Paulo, Brazil
2Departament of Pathology, Lauro de Souza Lima Institute, Bauru, SP, Brazil
Cutaneous Larva migrans is a very common disease in tropical regions. In the oral mucosa, the infection occurs in the same way as in
the skin, but it is rarer. This report describes two cases of Larva migrans in the oral mucosa. The first case was in a 27-year-old woman
who presented an erythematous plaque located on the buccal mucosa, extending to a posterior direction, following a linear pattern, to
other areas of the mouth. After incisional biopsy of the anterior-most portion of the lesion, morphological details obtained in multiple
examined sections suggested Necator or Ancylostoma braziliense larvae as the cause of infection. The second case was in a 35-year-
old male who presented a fusiform erythematous plaque in the palatal mucosa. This area was removed and submitted to microscopic
examination under a presumptive diagnosis of “parasite migratory stomatitis”. The histological characteristics were suggestive of a
larva pathway. In both cases the lesion disappeared after biopsy and the patients were symptom-free.
Key Words: Larva migrans, oral parasite, subcutaneous oral lesion.
organism, dying after 4 weeks (4).
The etiological agents found with greater
frequency in these cutaneous infections are helminthes
belonging to the Cestode and Nematode classes,
especially Ancylostoma brasiliense and Ancylostoma
caninum. These parasites are commonly found in the
small intestine of dogs and cats (1).
These infections are more common in tropical
countries and in Central and South America (1-4).
Contamination usually occurs by direct contact of the
skin or mucosa with contaminated surfaces, especially
sandorvegetation,whicharefavoredplacesfordomestic
animals to deposit their feces (3). The most frequently
affected body parts are the feet, legs, buttocks, hands,
and forearms (4). Although these parasites also infect
mucosas, such as the oral mucosa, there are few reports
in the literature about these cases (1-4).
In order to address this gap in the literature, this
report describes two cases of Larva migrans found in
the oral mucosa.
Correspondence: Prof. Fernando Toledo de Oliveira, Departamento de Estomatologia, Faculdade de Odontologia de Bauru, USP,Alameda Dr. Octávio
Pinheiro Brisolla, 9-75, Vila Universitária, 17012-101 Bauru, SP, Brasil. Tel: +55-14-3235-8254. e-mail: fto@usp.br
ISSN 0103-6440Braz Dent J (2011) 22(2): 166-170
2. Braz Dent J 22(2) 2011
Larva migrans in the mouth: report of cases 167
CASE REPORT
Case 1
A 27-year-old female from a rural area was
referredtoourservicesbyadermatologistwhorequested
a biopsy. The patient complained of oral canker sores
that migrated in different directions in the mouth,
producing an itching sensation and leaving her with the
impression of a bug crawling in her mouth. When these
lesionsreachedthethroat,thepatientreportedsignificant
discomfort, including dyspnea.
The lesion extended to a posterior direction in a
linear pattern, crossing the retromolar trigone and soft
palate, until it reached the anterior pillar of the opposite
sideofthetonsils(Fig.1A).Theoralinspectionrevealed
an erythematous plaque located on the buccal mucosa,
next to the right side of the lip commissure (Fig. 1B).
Incisional biopsy of the anterior-most portion
of the lesion was performed (Fig. 1B) and showed the
following microscopic aspects: oral mucosa constituted
of stratified squamous epithelium with spongiosis,
intraepithelial vesicles, and exocitosis. Under the
epithelium, the lamina propria showed intense subacute
inflammatory reaction, edema, fissures surrounded
by hemorrhagic areas, mononuclear infiltrate, and
numerous eosinophils (Fig. 2A).
In other areas seen in transversal sections, an
intraepithelialtunnelcontainingatubular-shapeparasite
with narrow lumen, compatible with a helminth larva,
was identified (Fig. 2B, arrow). Morphologic details
obtained in multiple examined sections suggested
Necator or Ancylostoma braziliense larvae as the cause
ofinfectionasopposedtolarvaesuchasToxocaracanis,
Ascaris lumbricoides, and Strongiloides stercoralis.
All of these helminthes can lead to the Larva migrans
clinical manifestation, which was the final diagnosis in
this case. The lesion spontaneously disappeared 1 week
after biopsy.
Case 2
A 35-year-old male, non-smoker, working in a
rural area, was referred to our service for examination
of erythematous lesions in the oral mucosa. The
lesions had appeared 3 months before examination and
were recurrent and burning. The patients denied the
occurrence of any systemic alterations in his medical
history, mentioning only the occurrence of cutaneous
“sandworms”andahabitofchewinggrassorwoodchips.
Intraoral inspection revealed a linear lesion,
continuous throughout almost the entire oral area. The
lesion presented as a fusiform erythematous plaque that
initiated in the right area of the palatal mucosa, crossed
the palate to the left side, descended to the inferior
anterioralveolarmucosa,andendedinthebuccalmucosa
on the right side (Fig. 3A,B).
In the buccal mucosa, in one of the extremities
of the larva pathway, there was an area that was larger,
moreerythematous,moreelevated,andmildlysensitive
to palpation. This 3-cmm-wide fusiform area was
removed and submitted to microscopic examination
under a presumptive diagnosis of “parasite migratory
stomatitis.”
The histological sections demonstrated an oral
mucosa fragment with mild epithelial hyperplasia. The
subjacent stroma presented intense edema, erythrocyte
overflow, and dilated vessels, as well as a mononuclear
infiltrate with a large number of polymorphonuclear
cells. The infiltrate affected the epithelium, leading to
spongiosisandthedevelopmentofvesicleswithserosity,
neutrophils, and eosinophils. Some areas had multiple
vesicles that formed a reticular pattern (Fig. 4A). The
subepithelial area presented abscesses amongst hyaline
material, with a tubular larva (Fig. 4B, arrow). The
histological characteristics were suggestive of a larva
pathway, with possible fragments of the parasite. The
lesion disappeared after incisional biopsy.
DISCUSSION
Cutaneous Larva migrans is a very common
disease in tropical regions (1-4). Animals, especially
dogs and cats, eliminate thousands of parasite eggs in
theirfeces.Inidealtemperatureandhumidityconditions,
the eggs develop larvae. The larvae hatch and feed
on organic matter and microorganisms in the soil. In
approximatelysevendays,thelarvareachestheinfective
state. In dogs and cats, the larvae reach sexual maturity
within approximately 4 weeks. In the human body, the
larvae actively penetrate through the skin and migrate
through the subcutaneous area for weeks or months and
then eventually die (1).
Larva migrans in oral mucosa is rare (1-5), but
the infection occurs in the same way as in the skin, i.e.,
through direct contact with surfaces contaminated with
larvae.Inthetworeportedcases,patientsmayhavebeen
infectedduetothelackofadequatehygieneofthehands
3. Braz Dent J 22(2) 2011
168 J.H. Damante et al.
and other body parts that could contact contaminated
dirt. The grass-chewing habit, which is common among
rural workers, is another contamination source, and it
was reported in Case 2. Capuano et al. (3) reported a
case of a patient from a rural area who had dogs and
cats in their backyard and who would eat fruits that had
fallen on the ground without washing them.
Jaeger et al. (2) reported another case in which
the infection probably occurred through direct contact
with surfaces contaminated with dog and cat feces. The
authors stated that the inoculation of the parasite might
haveoccurredbecausethepatient,whowasafisherman,
used to hold fishing hooks between his lips, and these
objects had had contact with beach sand.
Regarding the clinical manifestation, the first
symptom is an erythematous papule at the larva
penetrationsite,whichthenevolvesintoavesicle.Along
its migration route, the larva produces intense itching.
In older cutaneous lesions, crusts are formed, leaving a
dark line that later disappears (1,5).
The clinical manifestation is the same in oral
mucosa. In the case reported by Capuano et al. (3),
the lesions were originally composed of vesicles on
the palate and rapidly transformed into migratory
Figure 1. Clinical images of Case 1. A = Erythematous linear spot on the soft palate continuing as a linear erythematous plaque on the
buccal mucosa, on the right side; B = Detail of the anterior portion of the lesion. Emphasis on the hemorrhagic aspect.
Figure 2. Photomicrographs of Case 2.A= Oral mucosa with intense subacute inflammatoryreaction, erythrocyte overflow, lymphocyte
predominance, and a large number of eosinophils. Presence of rounded eosinophilic structure compatible with parasite; B = Detail
indicating probable anterior extremity of the parasite, with tubular structure and narrow lumen.
4. Braz Dent J 22(2) 2011
Larva migrans in the mouth: report of cases 169
and pruriginous lesions in several areas of the mouth.
Although the larva can migrate a reasonable distance, it
is generally confined to a small territory. In some cases
(3,4),lesionsareextensive,leavingapathwayinvarious
areas of the oral cavity, possibly due to more than one
infecting parasite.
Inthehumanbody,larvaearenotabletomaturate
anddiebetween4and8weeksafterinfection.Therefore,
this is a self-limited disease. In some cases, there may
behypersensitivitytotheparasite,withthedevelopment
of urticaria and local edema (4). In addition, there may
be discomfort associated with the symptoms, such as
dyspnea when lesions reach the throat, as reported by
the patient in Case 1.
The diagnosis of Larva migrans is primarily
clinical, i.e., based on signs and symptoms. However,
because its presentation in the oral mucosa is rare,
incisional biopsy of the newest portion of the lesion is
recommended. This enables the parasite to be detected,
as in Case 1.
The larva belongs to the Cestode or Nematode
classes (4,6). The main etiological agents are
Ancylostoma brasiliense and Ancylostoma caninum,
which are parasites of the small intestine of dogs and
Figure 3. Clinical images of Case 2. A = Linear erythematous plaque crossing the palate; B = Anterior portion of the lesion affecting
the lip area and the buccal mucosa.
Figure 4. Photomicrographs of Case 2.A= Oral mucosa with epithelial hyperplasia; hemorrhagic areas and subepithelial inflammatory
infiltrate; and exocytosis. Suprabasal tubular structures (arrow). B = Detail showing eosinophilic-contour tunnel with fragment of
amorphous structure that is compatible with parts of the parasite (arrow). Emphasis on the mononuclear inflammatory infiltrate and
on the large number of eosinophils.
5. Braz Dent J 22(2) 2011
170 J.H. Damante et al.
cats. However, other parasites such as Ancylostoma
ceylonicum, Uncinaria stenocephala, Bubostomum
phebotomum, Gongylonema species, Anatrichosoma
cutaneum, Strongyloides stercoralis, and Necator
americanus can also cause the disease (4). In Case 1,
the morphologic characteristics of the parasite were
compatible with Necator americanus or Ancylostoma
brasiliense. Similar to the cases presented by other
authors (2,3), the histopathological examinations
did not allow us verifying the nature of the larva
with certainty, although some measurements and
morphologic characteristics matched the ones observed
for Ancylostoma larvae.
Although cutaneous Larva migrans is a self-
limited disease because the larvae cannot mature and
dies within a few weeks, the majority of the authors
recommend treatment (1-4). The treatment may be
surgical, with either an excisional (4) or an incisional
biopsy, as performed in the two cases described in the
present report. Topic or systemic drug therapy is also an
option (1,4). In extensive cases with multiple lesions,
the systemic use of albendazole or thiabendazole is
recommended. In a previous oral Larva migrans case
(4), the lesion healed completely with systemic use of
thiabendazole (25 mg/kg twice a day for 5 days).
Finally, although oral Larva migrans is not
severe, it is a rare disease. Therefore, the reporting of
new cases is necessary so that lack of knowledge does
not compromise the diagnosis and treatment of patients.
RESUMO
Larva migrans cutânea é uma doença muito comum em regiões
tropicais. Na mucosa oral, a infecção ocorre da mesma forma
como na pele, mas é raro. Este relato descreve dois casos de
Larva migrans na mucosa oral. O primeiro caso foi de uma
mulherde27anosdeidade,queapresentouumaplacaeritematosa
localizada na mucosa julgal, estendendo-se posteriormente, em
conformação linear, para outras áreas da boca. Após biópsia
incisionaldaporçãomaisanteriordalesão,detalhesmorfológicos
obtidos em múltiplos cortes examinados sugeriram Necator ou
larvas de Ancylostoma braziliense como a causa da infecção.
O segundo caso foi de um homem de 35 anos de idade que
apresentouumaplacafusiformeseritematosasnamucosapalatina.
Esta área foi removida e submetida a exame microscópico, com
diagnóstico presuntivo de “estomatite migratória por parasita”.
As características histológicas foram sugestivas de trajeto de
larva. Em ambos os casos a lesão desapareceu após a biópsia e
os pacientes estavam assintomáticos.
REFERENCES
1. Andre J, Bernard M, Ledoux M, Achten G. Larva migrans of the
oral mucosa. Dermatologica 1988;176:296-298.
2. Jaeger RG, Araújo VC, Marcucci G, Araújo NS. Larva migrans in
the oral mucosa. J Oral Med 1987;42:246-247.
3. Capuano ACT, Sousa SCOM, Carvalhosa AA, Pinto Junior DS.
Larva migrans in the oral mucosa: Report of case. Quintessence
Int 2006;37:721-723.
4. Lopes MA, Zaia AA, Almeida OP, Scully C. Larva migrans that
affect the mouth. Oral Surg Oral Med Oral Pathol 1994;77:362-
367.
5. Hansen LS, Allard RHB. Encysted parasitic larvae in the mouth.
J Am Dent Assoc 1984;108:632-636.
6. Lambertucci JR, Rayes A, Serufo JC, Teixeira DM, Gerspacher-
Lara R, Nascimento E, et al.. Visceral Larva migrans and
tropical pyomyositis: A case report. Rev Inst Med Trop S Paulo
1998;40:383-385.
Accepted December 23, 2010