Cutaneous tuberculosis can present in several forms based on the route of infection and immune status of the host. Lupus vulgaris is the most common form in adults, presenting as slowly expanding reddish plaques on the head and neck. Scrofuloderma results from contiguous spread from underlying bone or lymph node infection, causing ulcerating nodules. Tuberculosis verrucosa cutis, or warty tuberculosis, occurs through inoculation and presents as painless verrucous plaques. Diagnosis involves biopsy showing granulomatous inflammation with caseation necrosis and occasionally visualizing acid-fast bacilli. Treatment involves anti-tubercular therapy targeting Mycobacterium tuberculosis.
The document provides information on various paraneoplastic dermatoses, which are relatively unusual skin conditions that may be associated with underlying cancers. It describes several conditions in detail, including their characteristic skin manifestations, associated malignancies, and potential pathogenic mechanisms. Some of the key dermatoses discussed are acanthosis nigricans, tripe palms, sign of Leser-Trelat, Bazex syndrome, and necrolytic migratory erythema associated with glucagonoma. Recognition of these paraneoplastic dermatoses can aid in early cancer diagnosis and improve patient prognosis.
Cutaneous tuberculosis can present in various forms as a result of hematogenous spread or direct extension from a latent tuberculosis infection. Common types include lupus vulgaris, verrucosa cutis, and scrofuloderma. Diagnosis involves skin biopsy demonstrating tuberculoid granulomas with occasional acid-fast bacilli. Treatment consists of long-term multidrug antitubercular therapy following standard protocols for systemic tuberculosis.
This document discusses the cutaneous manifestations of various systemic diseases. It covers connective tissue disorders like lupus erythematosus, infectious diseases like tuberculosis and leprosy, endocrine disorders such as thyroid disorders and adrenal disorders, and nutritional/metabolic conditions including iron deficiency, vitamin deficiencies, and amyloidosis. Many systemic illnesses present with characteristic skin findings that can help in early diagnosis and management of the underlying disease. Dermatological examination is important for identifying clues indicating internal medical conditions.
Cutaneous manifestations of internal malignancies.prasad panuganti
This document discusses various cutaneous manifestations that can be associated with internal malignancies. It describes how cutaneous metastases can directly involve the skin through tumor extension or metastases. It also discusses indirect involvement through paraneoplastic dermatoses where skin findings are caused by substances secreted by the tumor. Common cutaneous findings are described for different malignancies as well as criteria for diagnosing paraneoplastic dermatoses. Cutaneous manifestations are grouped into categories including proliferative/inflammatory dermatoses, genodermatoses, immunodeficiency syndromes, and hormone-secreting tumors. Specific examples of associations between cutaneous findings and internal cancers are provided.
This presentation deals with the various dermatological manifestations of various systemic malignancies and with particular focus on the paraneoplastic syndromes presenting with cutaneous manifestatons.
Cutaneous manifestations of internal malignancy and paraneoplastic syndromes gamal sultan
cutaneous manifestations are extremely valuable marker because they may well be the presenting manifestation of an underlying neoplasm.
Increased clinician awareness could prove beneficial for the patient by promoting earlier screening and diagnosis, as well as increased intervention measures, thereby significantly affecting the chances of survival and/or improving the quality of life of the patient
Cutaneous tuberculosis can present in several forms based on the route of infection and immune status of the host. Lupus vulgaris is the most common form in adults, presenting as slowly expanding reddish plaques on the head and neck. Scrofuloderma results from contiguous spread from underlying bone or lymph node infection, causing ulcerating nodules. Tuberculosis verrucosa cutis, or warty tuberculosis, occurs through inoculation and presents as painless verrucous plaques. Diagnosis involves biopsy showing granulomatous inflammation with caseation necrosis and occasionally visualizing acid-fast bacilli. Treatment involves anti-tubercular therapy targeting Mycobacterium tuberculosis.
The document provides information on various paraneoplastic dermatoses, which are relatively unusual skin conditions that may be associated with underlying cancers. It describes several conditions in detail, including their characteristic skin manifestations, associated malignancies, and potential pathogenic mechanisms. Some of the key dermatoses discussed are acanthosis nigricans, tripe palms, sign of Leser-Trelat, Bazex syndrome, and necrolytic migratory erythema associated with glucagonoma. Recognition of these paraneoplastic dermatoses can aid in early cancer diagnosis and improve patient prognosis.
Cutaneous tuberculosis can present in various forms as a result of hematogenous spread or direct extension from a latent tuberculosis infection. Common types include lupus vulgaris, verrucosa cutis, and scrofuloderma. Diagnosis involves skin biopsy demonstrating tuberculoid granulomas with occasional acid-fast bacilli. Treatment consists of long-term multidrug antitubercular therapy following standard protocols for systemic tuberculosis.
This document discusses the cutaneous manifestations of various systemic diseases. It covers connective tissue disorders like lupus erythematosus, infectious diseases like tuberculosis and leprosy, endocrine disorders such as thyroid disorders and adrenal disorders, and nutritional/metabolic conditions including iron deficiency, vitamin deficiencies, and amyloidosis. Many systemic illnesses present with characteristic skin findings that can help in early diagnosis and management of the underlying disease. Dermatological examination is important for identifying clues indicating internal medical conditions.
Cutaneous manifestations of internal malignancies.prasad panuganti
This document discusses various cutaneous manifestations that can be associated with internal malignancies. It describes how cutaneous metastases can directly involve the skin through tumor extension or metastases. It also discusses indirect involvement through paraneoplastic dermatoses where skin findings are caused by substances secreted by the tumor. Common cutaneous findings are described for different malignancies as well as criteria for diagnosing paraneoplastic dermatoses. Cutaneous manifestations are grouped into categories including proliferative/inflammatory dermatoses, genodermatoses, immunodeficiency syndromes, and hormone-secreting tumors. Specific examples of associations between cutaneous findings and internal cancers are provided.
This presentation deals with the various dermatological manifestations of various systemic malignancies and with particular focus on the paraneoplastic syndromes presenting with cutaneous manifestatons.
Cutaneous manifestations of internal malignancy and paraneoplastic syndromes gamal sultan
cutaneous manifestations are extremely valuable marker because they may well be the presenting manifestation of an underlying neoplasm.
Increased clinician awareness could prove beneficial for the patient by promoting earlier screening and diagnosis, as well as increased intervention measures, thereby significantly affecting the chances of survival and/or improving the quality of life of the patient
1. Cutaneous photosensitivity reactions require absorption of light energy by molecules, leading to damage and clinical disease.
2. Common photosensitivity disorders include polymorphic light eruption (PLE), chronic actinic dermatitis (CAD), and solar urticaria.
3. Clinical features, histopathology, and phototesting help differentiate types of photosensitivity dermatoses.
This document discusses the pathophysiology and management of pruritus (itch). It summarizes that pruritus can be caused by multiple pathways, including histamines, proteases, opioids, interleukin-31, vanilloids, neurotrophins, and substance P. Pruritus is classified into categories including dermatological diseases, systemic diseases, neurological diseases, and psychiatric diseases. Treatment involves targeting the specific components and pathways causing pruritus, such as proteases, cytokines, neurotrophin-induced pathways, and substance P. Non-pharmacological treatments like cognitive therapy are also used for psychogenic pruritus.
Dermatomyositis is a chronic inflammatory disorder of the skin and muscles that is characterized by an autoimmune pathogenesis. It commonly presents with characteristic rashes like Gottron's papules and heliotrope rash as well as proximal muscle weakness. Dermatomyositis can also involve internal organs like the lungs, esophagus and heart. Diagnosis involves assessing clinical features, muscle enzymes, electromyography, muscle/skin biopsies and identifying myositis-specific antibodies. Prognosis depends on the severity and organ involvement, with risks of residual weakness, contractures and death from respiratory or cardiac complications.
Leprosy, also known as Hansen's disease, is a chronic bacterial infection caused by Mycobacterium leprae. It primarily affects the skin and nerves. There are approximately 600,000 new cases detected worldwide each year. It is endemic in many developing countries. The disease presentation exists on a spectrum from tuberculoid leprosy to lepromatous leprosy depending on the immune response. Left untreated, leprosy can cause permanent nerve damage and deformities. Standard treatment involves multidrug therapy with dapsone, rifampin, and clofazimine over the course of months or years.
1) Lepra reactions are immunologically inflammatory states that can occur in leprosy patients. There are two main types - Type 1 reactions (downgrading and reversal reactions) and Type 2 reactions (Erythema Nodosum Leprosum or ENL).
2) Type 1 reactions involve the skin and nerves and cause swelling and tenderness. They occur after treatment begins. Type 2 or ENL reactions cause painful swollen skin lesions and other symptoms like fever. They typically occur after treatment in lepromatous patients.
3) Histologically, Type 1 reactions show edema while Type 2 reactions show deep inflammation, necrosis and few bacilli. Both can cause significant morbidity if not properly treated.
This document discusses disorders of pigmentation in the skin. It begins by describing the normal pigments that give skin its color, including melanin, oxyhemoglobin, and carotene. It then discusses melanogenesis, the process by which melanin is produced within melanocytes. Stimuli that can increase melanogenesis include UV radiation, melanocyte-stimulating hormone, and hormones like estrogen. Tanning is described as having two phases - immediate pigment darkening and delayed tanning involving new melanin production. Genetic differences determine skin pigmentation between races. Abnormal pigmentation can be caused by imbalances in normal pigments or presence of abnormal pigments. Causes of hypopigmentation and hyperpigmentation are then
Pityriasis rosea is a common, self-limiting skin rash characterized by oval lesions on the trunk and extremities. It is likely caused by a virus such as human herpesvirus-6 or -7. The rash begins with a single large 'herald patch' and spreads within 2-6 weeks. While usually resolving within 3 months, it causes moderate to severe itching. Treatment focuses on relieving itching with topical corticosteroids or antihistamines, with antivirals or phototherapy used in severe cases.
This document provides information on eosinophils and various eosinophilic conditions. It begins with basic facts about eosinophils as bone marrow-derived cells that normally make up 6% of white blood cells. It then discusses eosinophilic syndromes like hypereosinophilic syndrome and its subtypes. Other conditions discussed in detail include Well's syndrome, eosinophilic cellulitis, lymphocytic variant HES, myeloproliferative HES, granuloma faciale, erythema elevatum diutinum, eosinophilic pustular folliculitis, and recurrent cutaneous eosinophilic vasculitis. Clinical findings, histopathology, differential diagnoses
Pruritus, or itch, is a sensation that provokes the desire to scratch. Chronic pruritus lasts more than 6 weeks and can be caused by skin diseases or systemic diseases. Itch is transmitted through unmyelinated C fibers and is a distinct sensation from pain. Scratching provides temporary relief by stimulating myelinated fibers or damaging sensory nerve endings. Management of pruritus involves general skin care, topical agents like corticosteroids, calcineurin inhibitors, local anesthetics, and antihistamines, as well as treating any underlying cause.
This document discusses epidermal naevi, which are congenital developmental defects or birthmarks of the skin and mucosa. It describes different types of epidermal naevi classified based on the level of defect (epidermal, dermal, subcutaneous) and component cell (vascular, connective tissue, melanocytic). Verrucous epidermal naevi, also known as verrucous nevus or nevus verrucosus, are discussed in detail. They are keratinocyte hamartomas that can be either epidermolytic or non-epidermolytic types, with the latter having greater malignant potential and possible associations with extracutaneous abnormalities. Clinical features
- Lupus erythematosus is a chronic inflammatory disease associated with abnormalities of the immune system that results from genetic, hormonal, and environmental factors interacting. It can involve the skin and multiple organ systems.
- The document discusses the history, epidemiology, etiology, pathogenesis, clinical findings and classification of the different types of cutaneous lupus erythematosus including acute, subacute, and neonatal lupus. It provides details on the clinical presentations, pathogenic mechanisms, and classification systems for the skin involvement in lupus.
This document summarizes several bullous diseases:
1. It describes the locations and characteristics of vesicles and bullae. Vesicles can form within or under the epidermis or between the dermis and epidermis.
2. It then focuses on three main immunobullous diseases - pemphigus, pemphigoid, and linear IgA bullous disease. Pemphigus is caused by antibodies against desmoglein proteins and features flaccid blisters. Pemphigoid features tense blisters caused by antibodies against basement membrane proteins. Linear IgA bullous disease clinically resembles pemphigoid.
3. Dermatitis herpetiformis is described
Lupus erythematosus (LE) is an autoimmune connective tissue disorder that can affect one or several organs. Circulating autoantibodies and immune complexes are due to loss of normal immune tolerance and are pathogenic. Clinical features of LE are highly variable. LE nearly always affects the skin to some degree.
This document discusses the various dermatological manifestations of chronic kidney disease. It describes:
1) Skin conditions associated with diseases that can lead to end-stage renal disease like diabetes and connective tissue disorders.
2) Common uremic skin manifestations in patients with kidney failure like xerosis, pruritis, nail changes, and pigmentary alterations.
3) Dermatological complications related to renal transplantation like infections, drug reactions, and malignancies. Specific conditions discussed in detail include calciphylaxis, nephrogenic systemic fibrosis, and bullous disease of dialysis.
Histoid leprosy is a rare form of multibacillary leprosy characterized by cutaneous or subcutaneous nodules and plaques with a unique histopathology and bacterial morphology. It occurs in patients with reduced cell-mediated immunity and irregular or inadequate treatment for leprosy. Lesions most commonly appear on the back, buttocks, face and extremities as firm, dome-shaped papules. Histopathology shows numerous thin, spindle-shaped histiocytes forming bands and whorls containing large numbers of acid-fast bacilli. Treatment involves multidrug therapy with rifampicin, clofazimine and dapsone over an extended period of at least two years.
Erythema nodosum is an inflammatory skin disorder causing tender red nodules, usually on the lower legs, in response to antigenic stimuli or infections like streptococcus. It is caused by hypersensitivity reactions, certain medications, pregnancy, or underlying conditions like sarcoidosis or leukemia. The nodules begin as red and tender before becoming hard and painful over 1-2 weeks, and investigations may include throat cultures, chest x-rays, or biopsies depending on suspected causes. Treatment focuses on symptomatic relief with anti-inflammatory medications, and the condition is usually self-limiting.
The document discusses various skin manifestations that can indicate underlying systemic diseases, including several paraneoplastic syndromes, endocrine diseases like diabetes and thyroid disorders, and rheumatological conditions. Specific conditions mentioned include acquired ichthyosis, acrokeratosis paraneoplastica, alopecia neoplastica associated with various cancers, pretibial myxedema in Graves' disease, necrobiosis lipoidica and scleredema diabeticorum in diabetes, and dermatomyositis which can indicate ovarian cancer. Treatment options are provided for some conditions.
Salivary gland tumors can be benign or malignant. Benign tumors are more common and include pleomorphic adenomas, Warthin's tumors, and oncocytomas. These typically present as slow-growing masses in the parotid or submandibular glands. Malignant tumors are less common but can be diagnosed based on symptoms like rapid growth, pain, nerve palsies, or lymph node involvement. The most common sites for minor salivary gland tumors are the hard palate and other areas of the oral cavity. A thorough examination is needed to determine if a salivary gland tumor is benign or malignant.
1. Cutaneous photosensitivity reactions require absorption of light energy by molecules, leading to damage and clinical disease.
2. Common photosensitivity disorders include polymorphic light eruption (PLE), chronic actinic dermatitis (CAD), and solar urticaria.
3. Clinical features, histopathology, and phototesting help differentiate types of photosensitivity dermatoses.
This document discusses the pathophysiology and management of pruritus (itch). It summarizes that pruritus can be caused by multiple pathways, including histamines, proteases, opioids, interleukin-31, vanilloids, neurotrophins, and substance P. Pruritus is classified into categories including dermatological diseases, systemic diseases, neurological diseases, and psychiatric diseases. Treatment involves targeting the specific components and pathways causing pruritus, such as proteases, cytokines, neurotrophin-induced pathways, and substance P. Non-pharmacological treatments like cognitive therapy are also used for psychogenic pruritus.
Dermatomyositis is a chronic inflammatory disorder of the skin and muscles that is characterized by an autoimmune pathogenesis. It commonly presents with characteristic rashes like Gottron's papules and heliotrope rash as well as proximal muscle weakness. Dermatomyositis can also involve internal organs like the lungs, esophagus and heart. Diagnosis involves assessing clinical features, muscle enzymes, electromyography, muscle/skin biopsies and identifying myositis-specific antibodies. Prognosis depends on the severity and organ involvement, with risks of residual weakness, contractures and death from respiratory or cardiac complications.
Leprosy, also known as Hansen's disease, is a chronic bacterial infection caused by Mycobacterium leprae. It primarily affects the skin and nerves. There are approximately 600,000 new cases detected worldwide each year. It is endemic in many developing countries. The disease presentation exists on a spectrum from tuberculoid leprosy to lepromatous leprosy depending on the immune response. Left untreated, leprosy can cause permanent nerve damage and deformities. Standard treatment involves multidrug therapy with dapsone, rifampin, and clofazimine over the course of months or years.
1) Lepra reactions are immunologically inflammatory states that can occur in leprosy patients. There are two main types - Type 1 reactions (downgrading and reversal reactions) and Type 2 reactions (Erythema Nodosum Leprosum or ENL).
2) Type 1 reactions involve the skin and nerves and cause swelling and tenderness. They occur after treatment begins. Type 2 or ENL reactions cause painful swollen skin lesions and other symptoms like fever. They typically occur after treatment in lepromatous patients.
3) Histologically, Type 1 reactions show edema while Type 2 reactions show deep inflammation, necrosis and few bacilli. Both can cause significant morbidity if not properly treated.
This document discusses disorders of pigmentation in the skin. It begins by describing the normal pigments that give skin its color, including melanin, oxyhemoglobin, and carotene. It then discusses melanogenesis, the process by which melanin is produced within melanocytes. Stimuli that can increase melanogenesis include UV radiation, melanocyte-stimulating hormone, and hormones like estrogen. Tanning is described as having two phases - immediate pigment darkening and delayed tanning involving new melanin production. Genetic differences determine skin pigmentation between races. Abnormal pigmentation can be caused by imbalances in normal pigments or presence of abnormal pigments. Causes of hypopigmentation and hyperpigmentation are then
Pityriasis rosea is a common, self-limiting skin rash characterized by oval lesions on the trunk and extremities. It is likely caused by a virus such as human herpesvirus-6 or -7. The rash begins with a single large 'herald patch' and spreads within 2-6 weeks. While usually resolving within 3 months, it causes moderate to severe itching. Treatment focuses on relieving itching with topical corticosteroids or antihistamines, with antivirals or phototherapy used in severe cases.
This document provides information on eosinophils and various eosinophilic conditions. It begins with basic facts about eosinophils as bone marrow-derived cells that normally make up 6% of white blood cells. It then discusses eosinophilic syndromes like hypereosinophilic syndrome and its subtypes. Other conditions discussed in detail include Well's syndrome, eosinophilic cellulitis, lymphocytic variant HES, myeloproliferative HES, granuloma faciale, erythema elevatum diutinum, eosinophilic pustular folliculitis, and recurrent cutaneous eosinophilic vasculitis. Clinical findings, histopathology, differential diagnoses
Pruritus, or itch, is a sensation that provokes the desire to scratch. Chronic pruritus lasts more than 6 weeks and can be caused by skin diseases or systemic diseases. Itch is transmitted through unmyelinated C fibers and is a distinct sensation from pain. Scratching provides temporary relief by stimulating myelinated fibers or damaging sensory nerve endings. Management of pruritus involves general skin care, topical agents like corticosteroids, calcineurin inhibitors, local anesthetics, and antihistamines, as well as treating any underlying cause.
This document discusses epidermal naevi, which are congenital developmental defects or birthmarks of the skin and mucosa. It describes different types of epidermal naevi classified based on the level of defect (epidermal, dermal, subcutaneous) and component cell (vascular, connective tissue, melanocytic). Verrucous epidermal naevi, also known as verrucous nevus or nevus verrucosus, are discussed in detail. They are keratinocyte hamartomas that can be either epidermolytic or non-epidermolytic types, with the latter having greater malignant potential and possible associations with extracutaneous abnormalities. Clinical features
- Lupus erythematosus is a chronic inflammatory disease associated with abnormalities of the immune system that results from genetic, hormonal, and environmental factors interacting. It can involve the skin and multiple organ systems.
- The document discusses the history, epidemiology, etiology, pathogenesis, clinical findings and classification of the different types of cutaneous lupus erythematosus including acute, subacute, and neonatal lupus. It provides details on the clinical presentations, pathogenic mechanisms, and classification systems for the skin involvement in lupus.
This document summarizes several bullous diseases:
1. It describes the locations and characteristics of vesicles and bullae. Vesicles can form within or under the epidermis or between the dermis and epidermis.
2. It then focuses on three main immunobullous diseases - pemphigus, pemphigoid, and linear IgA bullous disease. Pemphigus is caused by antibodies against desmoglein proteins and features flaccid blisters. Pemphigoid features tense blisters caused by antibodies against basement membrane proteins. Linear IgA bullous disease clinically resembles pemphigoid.
3. Dermatitis herpetiformis is described
Lupus erythematosus (LE) is an autoimmune connective tissue disorder that can affect one or several organs. Circulating autoantibodies and immune complexes are due to loss of normal immune tolerance and are pathogenic. Clinical features of LE are highly variable. LE nearly always affects the skin to some degree.
This document discusses the various dermatological manifestations of chronic kidney disease. It describes:
1) Skin conditions associated with diseases that can lead to end-stage renal disease like diabetes and connective tissue disorders.
2) Common uremic skin manifestations in patients with kidney failure like xerosis, pruritis, nail changes, and pigmentary alterations.
3) Dermatological complications related to renal transplantation like infections, drug reactions, and malignancies. Specific conditions discussed in detail include calciphylaxis, nephrogenic systemic fibrosis, and bullous disease of dialysis.
Histoid leprosy is a rare form of multibacillary leprosy characterized by cutaneous or subcutaneous nodules and plaques with a unique histopathology and bacterial morphology. It occurs in patients with reduced cell-mediated immunity and irregular or inadequate treatment for leprosy. Lesions most commonly appear on the back, buttocks, face and extremities as firm, dome-shaped papules. Histopathology shows numerous thin, spindle-shaped histiocytes forming bands and whorls containing large numbers of acid-fast bacilli. Treatment involves multidrug therapy with rifampicin, clofazimine and dapsone over an extended period of at least two years.
Erythema nodosum is an inflammatory skin disorder causing tender red nodules, usually on the lower legs, in response to antigenic stimuli or infections like streptococcus. It is caused by hypersensitivity reactions, certain medications, pregnancy, or underlying conditions like sarcoidosis or leukemia. The nodules begin as red and tender before becoming hard and painful over 1-2 weeks, and investigations may include throat cultures, chest x-rays, or biopsies depending on suspected causes. Treatment focuses on symptomatic relief with anti-inflammatory medications, and the condition is usually self-limiting.
The document discusses various skin manifestations that can indicate underlying systemic diseases, including several paraneoplastic syndromes, endocrine diseases like diabetes and thyroid disorders, and rheumatological conditions. Specific conditions mentioned include acquired ichthyosis, acrokeratosis paraneoplastica, alopecia neoplastica associated with various cancers, pretibial myxedema in Graves' disease, necrobiosis lipoidica and scleredema diabeticorum in diabetes, and dermatomyositis which can indicate ovarian cancer. Treatment options are provided for some conditions.
Salivary gland tumors can be benign or malignant. Benign tumors are more common and include pleomorphic adenomas, Warthin's tumors, and oncocytomas. These typically present as slow-growing masses in the parotid or submandibular glands. Malignant tumors are less common but can be diagnosed based on symptoms like rapid growth, pain, nerve palsies, or lymph node involvement. The most common sites for minor salivary gland tumors are the hard palate and other areas of the oral cavity. A thorough examination is needed to determine if a salivary gland tumor is benign or malignant.
Skin cancers or cutaneous malignancies including Basal cell carcinoma, Squamous cell carcinoma and Melanoma and with a brief introduction of skin as an organ itself.
This document discusses the cutaneous manifestations of gastrointestinal (GI) malignancies and hereditary GI disorders. It covers several conditions including Lynch syndrome, Muir-Torre syndrome, familial adenomatous polyposis, Gardner syndrome, Peutz-Jeghers syndrome, Cowden syndrome, juvenile polyposis syndrome, Bannayan-Riley-Ruvalcaba syndrome, and neurofibromatosis. For each condition, it describes characteristic cutaneous findings such as sebaceous adenomas, keratoacanthomas, epidermoid cysts, and pigmented lesions that can indicate an increased risk of GI cancers. It emphasizes the important role of dermatologists in screening for these disorders through
This document provides information on tumors of the salivary glands. It discusses the anatomy and histology of salivary glands, classification of salivary gland tumors, and specifics on certain tumor types including pleomorphic adenoma and Warthin's tumor. Pleomorphic adenoma is the most common benign salivary gland tumor, characterized by epithelial and mesenchymal differentiation. Warthin's tumor commonly occurs bilaterally in the parotid glands of older smoking males. The document covers epidemiology, etiology, histogenesis, clinical features, investigation, pathology and treatment of various salivary gland tumors.
Cutaneous presentation of tumours can indicate underlying malignancies. Genodermatoses like Cowden's disease and Gardner syndrome are genetic syndromes associated with increased cancer risks. Paraneoplastic syndromes occur due to circulating factors from cancers and can cause rashes. Examples include Sweet's syndrome seen in leukemia and dermatomyositis which has been linked to several cancer types like ovarian cancer. Certain skin signs may precede a cancer diagnosis, such as acanthosis nigricans and Bazex syndrome seen in gastrointestinal cancers.
This document provides information about skin malignancies and skin cancers. It begins with an introduction to skin anatomy and then covers the embryology, types of skin tumors including basal cell carcinoma, squamous cell carcinoma, and malignant melanoma. For each type of skin cancer, it discusses epidemiology, risk factors, clinical features, pathogenesis, subtypes, investigations, and management. The key types of skin cancers covered are basal cell carcinoma, squamous cell carcinoma, and malignant melanoma. It provides detailed information about each type's characteristics, presentation and treatment.
This document discusses various ocular and orbital tumours. It begins by providing an overview of orbital anatomy and the effects of space-occupying lesions. It then discusses the most common paediatric and adult orbital tumours. Specific tumour types are examined in more detail, including retinoblastoma, rhabdomyosarcoma, lacrimal gland tumours, squamous cell carcinoma, and orbital metastases. For each tumour, the document outlines epidemiology, clinical presentation, investigations, differential diagnosis, and treatment approaches.
This document discusses benign tumors of epithelial tissue origin in the oral cavity. It focuses on squamous papilloma, verruca vulgaris, keratoacanthoma, and oral nevus. Squamous papilloma presents as a cauliflower-like growth caused by HPV. Keratoacanthoma is a low-grade skin malignancy that can occur in the mouth. Oral nevus, or mole, is a pigmented lesion caused by an overgrowth of nevus cells derived from neural crest cells. The document provides details on clinical and histological features to help differentiate these benign growths.
Foliate papillae are normal anatomical structures located on the posterior lateral surface of the tongue. Varix appear as red, blue, or purple broad-based elevations less than 5mm in size on the buccal mucosa, lip mucosa, or ventral and lateral tongue. Aphthous stomatitis, herpes simplex virus infections, and denture sore mouth are common oral lesions with various presentations, etiologies, and treatments.
1) Keloid and hypertrophic scars differ in that keloids grow beyond the boundaries of the original wound while hypertrophic scars remain within the boundaries and eventually regress.
2) Second degree burns extend into the deeper dermal layers and can cause blistering and moderate pain due to damage of some nerve endings, while third degree burns reach the subcutaneous fat and cause minimal pain as most nerve endings have been destroyed.
3) Venous ulcers on the legs indicate severe venous insufficiency and are the most common type of leg ulcer, affecting around 80% of cases. They are associated with signs of venous stasis such as hemosiderin deposition, telangiectasia,
This document discusses several benign diseases of the vulva, vagina, and cervix. It describes conditions such as Bartholin's cyst, atrophic lichen (lichen sclerosus et atrophicus), and squamous cell hyperplasia. For each condition, it provides details on presentation, etiology, pathology findings, and treatment options. The document aims to comprehensively cover inflammatory diseases, blistering diseases, pigmentary changes, benign tumors, hamartomas and cysts, and congenital malformations that can affect the vulva, vagina, and cervix.
This document provides a differential diagnosis for malignant swellings, listing several possible causes:
- Basal cell carcinoma most commonly appears on the face as eroding tissue that spreads locally but not through lymphatics.
- Squamous cell carcinoma usually affects the elderly and may develop after irritation or premalignant conditions, appearing as a raised cauliflower-like mass with involvement of hard lymph nodes.
- Malignant melanoma originates from melanocytes and commonly appears on the face, neck, palms and soles, presenting as a painless swelling with color changes and lymph node enlargement.
Dermatologic manifestations of renal diseasesraiziqbal
This document discusses the various dermatological manifestations that can occur in patients with renal disease. It covers cutaneous disorders that are common in patients with end-stage renal disease, as well as specific manifestations related to chronic kidney failure, dialysis treatment, and renal transplantation. Some key manifestations mentioned include pruritus, xerosis, bullous disorders, skin infections, hyperpigmentation, nail changes, and various drug-related side effects from immunosuppressants. Nephrogenic fibrosing dermopathy is also described as a distinct sclerodermoid condition seen in renal failure and transplant patients.
This document discusses neoplasms (tumors) of the salivary glands. It begins by describing the major and minor salivary glands. The most common benign tumors are pleomorphic adenoma, Warthin's tumor, and oncocytoma. The most common malignant tumors are mucoepidermoid carcinoma and adenoid cystic carcinoma. Factors like size and location of the gland affect likelihood of malignancy. Surgery is the main treatment and complications can include facial nerve paralysis, fluid collections, and Frey's syndrome.
This document discusses neoplasms (tumors) of the salivary glands. It begins by describing the major and minor salivary glands. The most common benign tumors are pleomorphic adenoma, Warthin's tumor, and oncocytoma. The most common malignant tumors are mucoepidermoid carcinoma and adenoid cystic carcinoma. Factors like size and location of the gland affect likelihood of malignancy. Surgery is the main treatment and complications can include facial nerve paralysis, fluid collections, and Frey's syndrome.
This document discusses the structure and pathology of the oral cavity and esophagus. It begins by describing the general four-layer structure of the esophagus which includes the mucosa, submucosa, muscularis and serosa layers. It then provides more details on the histology and functions of each layer. The document goes on to describe common oral pathologies like aphthous ulcers, oral candidiasis, leukoplakia and erythroplakia. It also discusses salivary gland structures, diseases like Sjogren's syndrome, mucoceles, ranulas, sialolithiasis and various benign and malignant salivary gland tumors.
power point presentation on the various pigmented lesions in the oral mucosa with their clinical features and oral manifestations and differential diagnosis
This document summarizes non-neoplastic epithelial disorders and tumors of the female genital tract. It describes lichen sclerosus and squamous hyperplasia as common non-neoplastic disorders of the vulva. Benign tumors mentioned include stromal polyps, papillary hidradenoma, and condyloma acuminatum. Vulvar intraepithelial neoplasia and invasive carcinoma are also discussed. Regarding the vagina, common infections like bacterial, fungal and protozoal vaginitis are summarized. Rare benign tumors and malignant cancers including squamous cell carcinoma and embryonal rhabdomyosarcoma are briefly outlined. Staging of vulvar and vaginal
Similar to Skin manifestation of internal malignancy (20)
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.
DECLARATION OF HELSINKI - History and principlesanaghabharat01
This SlideShare presentation provides a comprehensive overview of the Declaration of Helsinki, a foundational document outlining ethical guidelines for conducting medical research involving human subjects.
Travel vaccination in Manchester offers comprehensive immunization services for individuals planning international trips. Expert healthcare providers administer vaccines tailored to your destination, ensuring you stay protected against various diseases. Conveniently located clinics and flexible appointment options make it easy to get the necessary shots before your journey. Stay healthy and travel with confidence by getting vaccinated in Manchester. Visit us: www.nxhealthcare.co.uk
These lecture slides, by Dr Sidra Arshad, offer a simplified look into the mechanisms involved in the regulation of respiration:
Learning objectives:
1. Describe the organisation of respiratory center
2. Describe the nervous control of inspiration and respiratory rhythm
3. Describe the functions of the dorsal and respiratory groups of neurons
4. Describe the influences of the Pneumotaxic and Apneustic centers
5. Explain the role of Hering-Breur inflation reflex in regulation of inspiration
6. Explain the role of central chemoreceptors in regulation of respiration
7. Explain the role of peripheral chemoreceptors in regulation of respiration
8. Explain the regulation of respiration during exercise
9. Integrate the respiratory regulatory mechanisms
10. Describe the Cheyne-Stokes breathing
Study Resources:
1. Chapter 42, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 36, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 13, Human Physiology by Lauralee Sherwood, 9th edition
NAVIGATING THE HORIZONS OF TIME LAPSE EMBRYO MONITORING.pdfRahul Sen
Time-lapse embryo monitoring is an advanced imaging technique used in IVF to continuously observe embryo development. It captures high-resolution images at regular intervals, allowing embryologists to select the most viable embryos for transfer based on detailed growth patterns. This technology enhances embryo selection, potentially increasing pregnancy success rates.
The skin is the largest organ and its health plays a vital role among the other sense organs. The skin concerns like acne breakout, psoriasis, or anything similar along the lines, finding a qualified and experienced dermatologist becomes paramount.
Cell Therapy Expansion and Challenges in Autoimmune DiseaseHealth Advances
There is increasing confidence that cell therapies will soon play a role in the treatment of autoimmune disorders, but the extent of this impact remains to be seen. Early readouts on autologous CAR-Ts in lupus are encouraging, but manufacturing and cost limitations are likely to restrict access to highly refractory patients. Allogeneic CAR-Ts have the potential to broaden access to earlier lines of treatment due to their inherent cost benefits, however they will need to demonstrate comparable or improved efficacy to established modalities.
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Widespread adoption of cell therapies will not only require strong efficacy and safety data, but also adapted pricing and access strategies. At oncology-based price points, CAR-Ts are unlikely to achieve broad market access in autoimmune disorders, with eligible patient populations that are potentially orders of magnitude greater than the number of currently addressable cancer patients. Developers have made strides towards reducing cell therapy COGS while improving manufacturing efficiency, but payors will inevitably restrict access until more sustainable pricing is achieved.
Despite these headwinds, industry leaders and investors remain confident that cell therapies are poised to address significant unmet need in patients suffering from autoimmune disorders. However, the extent of this impact on the treatment landscape remains to be seen, as the industry rapidly approaches an inflection point.
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learning occurs when a stimulus (unconditioned stimulus) eliciting a response (unconditioned response) • is paired with another stimulus (conditioned stimulus)
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Skin manifestation of internal malignancy
1. Presented by: Dr. Pravin Kumar
Moderator :Prof.N Biplab
CUTANEOUS MANIFESTATION OF
INTERNAL MALIGNANCY
2. Introduction:
• Internal malignancy can result in manifestation on
skin
• These signs can be malignant or non malignant
Malignant- Local spread
Non malignant- Paraneoplastic dermatosis
• Skin signs can also signify heritable conditions
associated with malignancy
3. Helen Ollendorff Curth proposed criteria for
diagnosis of a paraneoplastic dermatosis:
• The cutaneous manifestation and internal malignancy may
be diagnosed simultaneously or with in a short interval.
• The dermatoses may clear on treatment of malignancy and
relapse if the malignancy recurs.
• Specific type of neoplasms and the para neoplastic
conditions occur with specific dermatosis
• A statistically significant association is reported between
the cutaneous manifestation and the internal malignancy.
• A genetic association exists between the internal
maignancy and specific cutaneous disease
4. Cutaneous manifestations of internal
malignancies are grouped into 3 categories:
• Proliferative and inflammatory dermatoses
associated with internal malignancies.
• Genodermatoses with cutaneous tumors and internal
malignancies.
• Hormone secreting tumor with cutaneous
manifestations.
7. • Velvety, verrucous,hyper pigmented plaques on flexures
and neck.
• Papillomatous changes in the oral cavity .
Associated malignancy:
• Adenocarcinoma of the stomach.(MC)
• Ca lung,ovary,endometrium,kidney, pancreas
Acanthosis Nigricans
8. Cutaneous manifestations :
• Sudden appearance and/or rapid
increase in size of multiple seborrheic
keratoses often pruritic.
Associated malignancy:
• carcinoma of the gastrointestinal
tract.
• Tumors of the female
reproductive system.
• lympho proliferative disorders.
Sign of leser tract
9. Cutaneous manifestation:
• Hyperkeratosis in a wrinkled or ridged
pattern on the palms(honey comb
appearance) and the dorsal surface of
the large joints.
Associated malignancy:
• Squamous cell carcinoma of the lung.
• Gastric carcinoma
Tripe palm
10. Cutaneous manifestations:
• Symmetrical, psoriasiform and erythematous to violaceous
plaques on nose, ears, and distal extremities.
• Dystrophic nails are pruritic.
• The malignancy and cutaneous findings are concurrent.
Associated malignancy:
• Carcinoma of the upper respiratory, and
Digestive tracts.(oralcavity,larynx,pharynx,esophagus)
Bazex syndrome(Akrokeratosis paraneoplastica)
11.
12. Cutaneous manifestation:
• extensive, silky nonpigmented
lanugo hair on the face, neck, trunk,
and on the extremities.(previously
seen hair less by the patient).
• Painful glossitis,angular cheilitis,and
swollen red fungiform papillae on
the anterior half of the tongue.
• Hyper trichosis usually antedates
the malignancy.
Associated malignancy:
• Adeno carcinoma of the gastro
intestinal tract,lung cancer.
Acquired
Hypertrichosis
Lanuginosa
13. Cutaneous manifestation:
• Adult onset,
• - classical heliotrope rash
-gottrons papules.
-proximal myopathy.
• The risk of underlying
Associated malignancy:
• ovarian and breast cancers in F .
• Lung and prostate cancers in M.
Dermatomyositis
malignancy is highest in the
first year of diagnosis
14. Cutaneous manifestation:
• Acute onset of erythematous,tender
papules,plaques,or nodules on the face,
extremities and upper trunk with
vesiculation or pustules on the surface.
Associated malignancy:
• Myeloproliferative disorders
commmonly acute myelogenous
leukemia.
Neutrophillic Dermatoses /Sweet’s syndrome
15. Cutaneous manifestation:
• large spreading purulent ulcers,with
cyanotic over hanging borders .
• Cutaneous disease and malignancy
often present concurrently and run a
parallel course
Associated malignancy:
• Hematological malignancy,
• Monoclonal gammmopathies,
• Myeloma solid tumors,Non
hodgkins lymphoma,
Pyoderma gangrenosum
17. Figurate erythema
Cutaneous manifestation:
• Erythema gyratum repens (multiple
wavy urticarial bands with fine
scales,migratory with wood grain like
pattern)
Associated malignancy:
•lung, esophageal,breast,cancers
Vascular disorder:
18. • Extensive areas of purpura non
palpable,may be associated with
DIC.
• Trousseau syndrome:migratory
superficial thrombophlebitis and
multiple DVT on the neck ,chest
abdominal wall and limbs.
Associated malignacy:
• Hematological malignancies,tumors
arising in the pancreas,lung, prostate
Coagulopathy
22. cutaneous manifestation:
• Erythematous plaques at site other
than the breast ,most often on the
axillary ,inguinal fold,vulva or
scrotum.
Associated malignancy:
• Adenoca of the rectum or anal
canal,underlying sweat
gland,sebaceous and apocrine
carcinomas.
Extramammary paget disease
23. Cutaneous manifestation:
• Hypertrophic osteoarthropathy a manifestation of sub
periosteal new bone formation occurs along the shaft of the
phalanges.
Pachydermoperiostosis:
• clubbing associated with acromegaloid features.
Associated malignancy:
• Lung cancer and metastatic tumors to the lung.
• Pitutory tumor in case of Acromegaly
24. cutaneous manifestation:
• Yellow discoloration of
nails,thickened nails with slow
growth,some times nails present
with edema of the proximal nail
folds.
Associated malignancy:
• Mycosis fungoides,laryngeal
carcinoma
• Ca GB,,bronchiogenic
carcinoma, Ca breast,NHL
• Endometrial carcinoma
Yellow Nail Syndrome
25. Acquired icthyosis
• Cutaneous manifestation--
genaralised xerosis and ichthyotic
scaling.
• Associated malignancy--hodgkins
lymphoma,lympho proliferative
disorders.
Pityriasis Rotunda
• Cutaneous manifestation-
Symmetrical circular scaly lesions on
the trunk described in japanese.
• Associated malignancy-HCC,cancers of
GIT ,prostate, myeloproliferative
disorders.
27. • COWDEN SYNDROME(MHS, AD)
Hamartomas of skin and mucosa
At least one of the four types of skin
lesions
• Facial trichillemmomas
• Oral lesions –cobblestone appearance
known as papillomatosis.
• Acral keratosis- Dorsal surface of hands
and feet
• Palmoplantar keratoses – scaly spots on
the palms and soles
28. Associated malignancy
Breast cancer
Genitourinary tumours
Thyroid cancer,especially follicular thyroid
carcinoma
Skeletal abnormalities such as bone cysts.
Gastrointestinal polyps
29. Cutaneous features:
• Sebaceous adenomas
• keratoacanthomas. (firm, rounded,
flesh- coloured or reddish papule--
central part of the face,the dorsum of
the hand,wrist and forearm
commonly affected.)
Associated malignancy:
• Colorectal, genito urinary cancers.
Muir Torre syndrome
30. Gardner syndrome
-Benign lipomas, frontal
& maxillary osteomas.
(often get exophthalmos)
-Related to
familial adenomatous
polyposis(FAP). Colon polyps
become malignant and
extracolonic tumours of
thyroid, craniofacial skeleton
& cysts of the epidermis.
31. Association between tylosis
(thickened skin of the palms and
soles) and esophageal cancer.
• The keratoderma usually develops
during childhood and is
accentuated over pressure sites
• Oral leukoplakia
• chromosome 17q25, now referred
to as the tylosis (o)esophageal
cancer (TOC) gene, appears to be
associated with this syndrome
Howel-Evan Syndrome
32. Autosomal dominant syndrome.
Skin tags and benign hair follicle tumors
(fibrofolliculomas and trichodiscomas) that most
often occur on the head and neck.
Associated malignancy
• Chromophobe and oncocytic types of RCC,
Medullary carcinoma of the thyroid is also
associated
• A mutation in the 17p11.2 gene, which
encodes folliculin
Birt-Hogg-Dube Syndrome
33. An autosomal dominant condition
The cutaneous leiomyomas may be
segmental or band-like rather than
diffuse and symmetric . They are
firm, flesh- colored, red or brown,
and may be painful
Appear by age 25 years
Multiple leiomyomas of the uterus
Papillary renal cell carcinoma.
Heriditary leiomyomatosis/ Renal cell carcinoma
syndrome
36. Peutz-Jegher syndrome
• Autosomal dominant
• Freckle-like pigmented macules
that in lips, nose, buccal mucosa,
fingertips, and under the nails
• mutations in the STK11/LKB1
gene on chromosome 19p13.3.
Associated malignancy :
• extensive hamartomatous polyps
and carcinomas throughout the GI
tract, mainly the small intestine
37. Gorlin syndrome
• Also known as naevoid basal cell
carcinoma.
• Associated malignancy:
medulloblastoma & benign tumours
of the ovaries.
40. Glucagonoma Syndrome
Cutaneous manifestation:
Necrolytic migatory
erythema,affects the perioral
region and the distal extremities
Associated malignancy:
Neoplastic proliferation of the
glucagon secreting alpha cells of
the pancreas
42. Carcinoid syndrome
Cutaneous manifestations:
• Flushing,Permanent facial cyanotic flush and
telangiectasia,resembling rosacea.
• Leonine facies due to persistant facial
erythema and edema,
Pellagroid rash.
Associated malignancy:
• Carcinoid tumors are most often found in the
appendix or small intestine.
• Extra intestinal carcinoids may arise in
the bile ducts, pancreas, stomach,
ovaries or bronchi.
43. Multiple endocrine neoplasia
Cutaneous manifestation:
• Carcinoid like syndrome in MEN 2A
• Mucocutaneous lesions occur only in
MEN 2B (multiple mucosal
neuromas ).
• Skin lesions do not characterize
MEN 1
Associated malignancy:
• Medullary thyroid cancers
44. Cutaneous manifestation
• Flesh colored to violaceous
nodules,commonly located close
to the primary neoplasm.
• Common in malignancy
spreading the lymphatics, such
as cancers of the
breast,oropharynx,and urinary
bladder
45. CONCLUSION
• The skin examination can reveal signs of a
predisposition toward malignancy
• It can yield valuable early clues suggesting an
underlying neoplastic process.
• Although the skin changes doesn’t guarantee a
100% acurate diagnosis of internal cancer ,
recognition of these cutaneous signs and
symptoms should alert the clinician to initiate
appropriate diagnostic measures for a early
diagnosis of malignancy