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1. The document describes several dental pathology cases with information on clinical features, radiographic findings, and histopathological features. 2. Cases include examples like dentigerous cyst, ameloblastoma in various subtypes, odontogenic keratocyst, complex and compound odontome, odontogenic myxoma and others. 3. For each case, relevant clinical, radiographic and microscopic diagnostic details are provided.
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Cbc revision
1. The document describes various clinical presentations, radiographic findings, and histopathological features of different dental diseases.
2. Examples include caries lesions at different stages, pulp polyps, periapical abscesses, radicular cysts, dentigenous cysts, and central giant cell granulomas.
3. Histopathology slides show features like transverse dentinal clefts, pulp tissue with dilated blood vessels, and cyst cavities lined by stratified squamous epithelium.
calcifying odontogenic cyst
This document provides information about calcifying odontogenic cysts (COCs). It defines COCs and classifies them according to the WHO. COCs are rare jaw lesions characterized by ghost cells and calcifications. They are thought to arise from odontogenic epithelial remnants. Clinically, they typically present in the second decade of life with lesions more common in the maxilla than mandible. Radiographically, COCs appear well-defined with variable calcifications. Histologically, they contain ghost cells and basal cell layer with hyperchromatic nuclei. Prognosis is generally good when treated with surgical removal.
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This document discusses aneurysmal bone cyst (ABC), beginning with its definition as a benign, expansile bone lesion containing blood-filled cystic cavities. It describes ABC's unknown etiology, most common locations in long bones of younger patients, and presentations of pain, swelling or fracture. Imaging findings include expansile lytic lesions on x-ray, and fluid-fluid levels on MRI. Treatment involves preoperative embolization and curettage with bone grafting. ABC's differential diagnosis and potential for recurrence after treatment are also summarized.
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Injerto oseo
Unicameral bone cyst is a benign bone lesion of uncertain origin that typically occurs in the calcaneus bone of the foot. It presents as mild pain during sports in teenagers and young adults. MRI imaging shows the cyst has high signal intensity and a well-defined margin. Treatment for asymptomatic cysts is observation, while painful cysts can be treated with minimally invasive techniques like steroid injections or drilling holes in the bone. Larger studies are still needed to determine the most effective treatment approach.
Ameloblastoma
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Ameloblastoma
Dr. Ahmed M. Adawy, Professor Emeritus, Dep. Oral & Maxillofacial Surgery. Former Dean, Faculty of Dental Medicine, Al-Azhar University. Ameloblastoma is benign slow-growing but locally invasive neoplasm of odontogenic origin. In 2005, the WHO has classified ameloblastomas into multi cystic, unicystic and peripheral subtypes. The clinical picture, radiographic findings and differential diagnosis are presented. Treatment of ameloblastomas is primarily surgical. There has been some debate regarding the most appropriate method for removing. These range from conservative to radical modes. Some authors advocate conservative approach and thought that ameloblastoma are essentially benign in nature and should be treated as such. However, this conservative approach result in recurrence rates of 55% to 90%of the cases. Currently, the standard of care for ameloblastoma includes en bloc resection with 1-2 combine margin and immediate bone reconstruction. Despite the medical nature of a surgical resection, it may actually involve less morbidity than extensive hard and soft tissue resection with associated extensive morbidity that may be warranted in case of recurrence following inadequate primary treatment.
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This document presents the case of a 38-year-old male with a recurrent ameloblastoma. He initially underwent surgery in 2013 for a tumor in his maxilla and had a recurrence in 2015. Imaging showed a new mass in his maxillary sinus, sphenoid sinus, and infratemporal fossa. He underwent another surgery to remove the tumor as well as radiotherapy due to the recurrence and close margins. Ameloblastoma is a rare, benign but locally invasive tumor of odontogenic origin that typically presents as a painless swelling. Surgery is the main treatment, but radiotherapy can be considered for recurrent or residual cases.
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This document discusses dentigerous cysts. It defines a dentigerous cyst as a cyst that forms around the crown of an unerupted tooth due to fluid accumulation between the reduced enamel epithelium and enamel surface. Dentigerous cysts most commonly occur in males in the first three decades of life in the mandibular third molar and maxillary canine regions. Clinical features include swelling and expansion of bone that may cause facial asymmetry. Treatment options include enucleation, marsupialization, or a combination of the two to remove the cyst lining while preserving adjacent structures.
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The document reports a case of ameloblastoma in a 60-year old female patient. She presented with a swelling on her right cheek that had been growing over the past 2 years. Radiological investigations including OPG and CT scans showed a bicortical expanding lesion in the right body and ramus of the mandible. An incisional biopsy was performed and the provisional diagnosis of ameloblastoma was made.
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The document discusses various types of odontogenic cysts that develop in the jaws. It defines odontogenic cysts and provides classifications based on etiology and location. Key cysts discussed in detail include the dentigerous cyst, which forms around the crown of an unerupted tooth, and the lateral periodontal cyst, which occurs on the root surface of a vital tooth. For each cyst, the document outlines clinical features, radiographic appearance, histology, pathogenesis and treatment.
Diagnostic ability of differential diagnosis in ameloblastoma and odontogenic...
This study evaluated the diagnostic ability to differentiate between ameloblastoma and odontogenic keratocyst using different imaging modalities and observers with varying levels of experience. Six oral radiologists diagnosed 83 cases using panoramic radiograph only, CT only, or both combined. Their ability to differentiate the lesions was assessed using ROC analysis. Experienced observers performed best when using both panoramic and CT images together, followed by CT only, and worst with panoramic only. Less experienced observers performed worst with CT only. Combining imaging modalities and experience level of observers can improve accurate differentiation of these lesions.
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A traumatic bone cyst is a lesion that forms within bone, often in the mandible, that lacks an epithelial lining. It is believed to result from trauma that causes a hematoma within the bone that fails to organize, leaving an empty cavity. Teenagers are most commonly affected, presenting with swelling or pain. Radiographs show a well-delineated radiolucent area with scalloped borders between tooth roots. Histopathology finds minimal fibrous tissue without an epithelial component.
Principles of tumor surgical management
The document discusses principles of surgical management of jaw tumors. There are three main surgical excision modalities: (1) enucleation with or without curettage, (2) marginal or partial resection, (3) composite resection. The aggressiveness of the lesion, its histologic diagnosis, and anatomical location determine the appropriate treatment, ranging from conservative enucleation to more extensive resection. Malignant tumors of the oral cavity can arise from various tissues and may be treated with radiotherapy, chemotherapy, or surgery.
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Simple bone cysts, also known as unicameral bone cysts, are fluid-filled cavities within bone that typically occur in the long bones of children ages 4-10. They enlarge during growth but become inactive after skeletal maturity. Active cysts develop near the growth plate and can cause pathologic fractures. Treatment involves curettage to remove the cyst lining and bone grafting to prevent fractures and reduce the risk of recurrence.
Ameloblastoma in children
This study examines the surgical management of ameloblastoma in 15 Taiwanese children between 1991-2004. The average patient age was 13.7 years. Most lesions were located in the mandible. Treatment methods included enucleation with peripheral ostectomy, decompression before enucleation, and segmental resection with bone grafting. The unicystic type lesions did not recur, while 3 of the multicystic cases recurred. Complications included numbness and facial deformity. The study concludes conservative surgery can achieve good results for ameloblastoma in children, and secondary surgery is effective for recurrence. Careful long-term follow-up is important.
Pseudo cyst
This document discusses various types of pseudocysts and true cysts found in the body. It begins by defining the key differences between a true cyst and a pseudocyst. Pseudocysts are lined by granulation and/or fibrous tissue rather than an epithelial cell layer. The document then classifies and describes different types of pseudocysts including traumatic bone cysts, aneurysmal bone cysts, and developmental cysts. It provides details on the etiology, location, patient demographics, clinical presentation, radiographic features, histopathology and treatment for each type.
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Peripheral giant cell granuloma (giant cell epulis
The document discusses two types of giant cell lesions of the jaw: peripheral giant cell granuloma (PGG) and central giant cell granuloma (CGG). PGG is a reactive lesion caused by local irritation or trauma that occurs on the gingiva. CGG is a benign process that occurs within the jaw bones and can be non-aggressive or aggressive depending on symptoms and growth rate. Both lesions contain multinucleated giant cells and are treated with surgical excision, with CGG having a slightly higher recurrence rate. Key distinguishing features and histological characteristics are provided.
pathology Lap
1. The document discusses various types of cysts found in pathology, including dentigerous cysts, keratocysts, calcifying epithelial odontogenic cysts, and radicular cysts.
2. It also summarizes different bone diseases such as osteogenesis imperfecta, osteopetrosis, cherubism, and fibrous dysplasia of bone, characterized by abnormalities in bone formation, resorption, and replacement with other tissues.
3. Finally, the document outlines odontogenic tumors including ameloblastoma, adenomatoid odontogenic tumors, cementoifying fibroma, cementoblastoma, ameloblastic fibroma, and their histological features
METASTATIC TUMORS OF THE JAW
This document discusses cancer metastasis, specifically metastasis to the jaw. It begins by defining cancer metastasis as the process where tumor cells invade nearby tissues and spread via the lymphatic system or bloodstream to form tumors in other parts of the body. The jaw is a relatively rare site of metastasis, accounting for around 1-1.5% of oral malignant tumors. The most common primary sites that metastasize to the jaw are the lungs, breast, kidneys, and bone. Metastasis to the jaw usually presents with pain, difficulty chewing, swelling, and pathological fractures. Radiographs may show osteolytic or osteoblastic lesions depending on the primary tumor type. Histopathological examination is needed for definitive diagnosis of metastatic
Peripheral and central giant cell granuloma
This document discusses two types of non-epithelial tumours of the oral cavity: peripheral giant cell granuloma and central giant cell granuloma. Peripheral giant cell granuloma originates from the periodontal membrane or alveolar bone and presents as a soft tissue nodule composed of multinucleated giant cells. Central giant cell granuloma is a rare, benign, intraosseous lesion most commonly found in the mandible of young people that causes expansion of the bone and resorption of tooth roots. Both lesions contain proliferation of multinucleated giant cells and other cells and may require surgical excision, with central giant cell granuloma having a higher rate of recurrence.
Case presentation of Gorlin Goltz syndrome
This document discusses Gorlin Goltz Syndrome, a rare genetic condition caused by mutations in the PTCH1 gene. It presents three key points:
1. Gorlin Goltz Syndrome is characterized by multiple basal cell carcinomas, odontogenic keratocysts of the jaws, and other abnormalities like skeletal anomalies and ovarian fibromas. It has an autosomal dominant inheritance pattern.
2. The case presentation describes a 32-year-old female patient found to have multiple recurrent odontogenic keratocysts in the mandible and maxilla, leading to a diagnosis of Gorlin Goltz Syndrome based on major and minor diagnostic criteria.
3. Management of odontogenic kerat
Dentigerous cyst
This document discusses dentigerous cysts, including their definition, pathogenesis, clinical features, radiological features, histological features, investigation, treatment, and potential complications. A dentigerous cyst is an odontogenic cyst that forms around the crown of an unerupted tooth due to fluid accumulation between the reduced enamel epithelium and enamel surface. Clinically, they usually appear as asymptomatic swellings but can cause expansion of the bone. Radiographically, they appear as well-defined radiolucencies that surround the crown of an unerupted tooth. Treatment involves surgical removal of the cyst lining either through enucleation or marsupialization along with removal of the associated tooth. Complications can include
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Pulpitis
This document discusses different types of pulpitis and periapical inflammation. It defines pulpitis as inflammation of the dental pulp that can be acute or chronic. Acute pulpitis is further divided into reversible and irreversible types based on whether the inflammation is localized or involves the entire pulp. Chronic pulpitis can be closed or open (hyperplastic). Periapical inflammation ranges from granulomas and cysts to abscesses. Diagnosis involves x-rays and pulp testing to evaluate the pulp chamber and periapical region. Treatment depends on the specific condition but may include removal of irritants, root canals, drainage or extraction.
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2. It also mentions an adenomatoid odontogenic tumor characterized by spindle epithelial cells forming whorled masses and duct-like structures.
3. Finally, it discusses a benign cementoblastoma seen as a radiopacity in the lower anterior jaw, clinically appearing as a unilateral swelling and showing active cementoblasts surrounding cement trabeculae radiographically.
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1. Inflammatory lesions of the jaws are the most common pathologic condition and can have various causes, presentations, and radiographic features.
2. Acute lesions typically present with pain, fever and swelling while chronic lesions present with less pain, intermittent fever and swelling.
3. Radiographically, lesions may appear radiolucent indicating bone destruction, radiopaque indicating increased bone formation, or mixed. Early lesions may not be visible on conventional radiographs.
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The document discusses diseases of the dental pulp, including causes, symptoms, diagnosis, and treatment. It covers reversible and irreversible pulpitis, pulp degeneration including calcific, atrophic, and fibrous degeneration, as well as necrosis of the pulp. The main causes of pulp disease are physical (trauma, wear), chemical (acids), and bacterial factors. Symptoms depend on the specific disease but may include tooth sensitivity to hot/cold or pain from irritation. Treatment involves removing the cause, performing root canals, or tooth extraction if not restorable.
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This document provides an overview of the classification of dental caries based on various factors such as anatomical site, progression, extent of involvement, number of tooth surfaces affected, chronology, and whether caries was fully removed during treatment. It discusses 12 different classification systems for dental caries and provides details on types of caries such as pit and fissure, smooth surface, root surface, incipient, occult, and others based on these classification criteria. The document also covers the histopathology of caries in enamel and dentin.
Pulp and periapical disease
this seminar is talking about one of the most important topics for any dentist in the world (pulp and periapical diseases)
i hope it will be helpful for you
Pathogenesis of dental caries
This document discusses the pathogenesis of dental caries. It begins by explaining that dental caries is caused by the interaction of sugars, teeth, and microorganisms. It then discusses the roles that various factors play in the disease process, including sugars/carbohydrates, microorganisms like Streptococcus mutans, lactic acid production, dental plaque, and the buffering effects of saliva. The document also explains the cycles of demineralization and remineralization that can occur, and the histological changes seen in carious lesions over time.
Dental caries ppt
Dental caries is caused by bacterial damage to teeth from plaque and acid production when exposed to fermentable carbohydrates like sugar. The major bacteria involved are Streptococcus mutans and lactobacilli, which adhere to teeth and produce acid from sugars, lowering the pH and demineralizing enamel and dentin. If left untreated, caries can spread to the pulp, causing inflammation and pain. Consequences of untreated dental caries include local infections and possible systemic illnesses.
Patterns in histopathology
This document discusses various histopathological patterns seen in tissue samples. It defines terms like trabeculae, syncytium, alveolus, herringbone, storiform, fascicle, cribriform, tubule, papillae, Indian file, hobnail, rossette, microcystic, and follicle. Examples of diseases that exhibit each pattern are provided. The objectives are to help differentiate patterns in histopathology. Key patterns include trabecular, syncytial, alveolar, herringbone, storiform, fascicular, cribriform, tubular, papillary, micropapillary, Indian file, hobnail, and rossette
Dental caries
The document discusses dental caries, including its etiology and classifications. It provides details on:
1) Dental caries is a progressive, subsurface demineralization of teeth caused by bacterial acids that leads to tooth decay.
2) Old and new theories on the etiology of dental caries including the roles of carbohydrates, microorganisms, acids, and dental plaque in the acidogenic/chemoparasitic theory.
3) Classifications of dental caries including based on nature of attack, progression, surfaces involved, direction of attack, number of surfaces, GV Black classification, location, and tissues involved.
Pulipitis
The document discusses diseases of the dental pulp, including pulpitis and necrosis. It defines the pulp as the formative organ of the tooth that builds dentin. Pulpitis is the most common cause of dental pain and can be reversible or irreversible depending on the severity of inflammation. Untreated pulpitis can lead to necrosis or death of the pulp. Causes include mechanical, thermal, chemical, and bacterial factors. Management involves removal of irritants and root canal treatment if needed.
Pulp diseases
This document discusses disease of the pulp, including classification and types. It describes reversible and irreversible pulpitis, with reversible pulpitis causing mild to moderate pain in response to stimuli that subsides after removal of the stimuli. Irreversible pulpitis causes persistent pain even after stimulus removal and can progress to pulp necrosis with total or partial death of the pulp. Other conditions discussed include chronic hyperplastic pulpitis, previously treated teeth, and teeth with previously initiated therapy.
Classification Of Dental Caries
The document classifies dental caries in several ways:
1. Based on anatomical site such as occlusal, root, and smooth surface caries. Occlusal caries are most prevalent.
2. Based on progression as acute, chronic, or arrested caries. Acute caries progresses rapidly while chronic caries is slow.
3. Based on the initial involvement of the tooth surface as primary or recurrent caries. Primary caries is the initial attack while recurrent caries occurs around restorations.
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Cbc revision-01
1. The document describes various clinical, radiographic and histopathological findings related to dental diseases.
2. Examples include caries lesions at different stages, pulp polyps, periapical abscesses, cysts such as radicular and dentigerous cysts, and tumors such as ameloblastoma and odontogenic keratocyst.
3. Radiographs show lesions such as periapical radiolucencies and multilocular radiolucencies associated with various pathologies. Histopathology reveals features of cyst linings, tumor cell patterns, and inflammatory processes.
Cysts of the jaw and neck
This document discusses and classifies various cysts of the jaws and neck. It describes 9 main odontogenic cysts including radicular, lateral periodontal, dentigerous, and calcifying odontogenic cysts. It also discusses non-odontogenic cysts such as nasolabial and nasopalatine canal cysts as well as pseudocysts like aneurysmal bone cyst and traumatic bone cyst. Finally, it summarizes 3 main soft tissue cysts of the neck - branchial, dermoid, and thyroglossal tract cysts.
175th publication jfmpc- 6th name
This case report describes a 34-year-old male patient who presented with pain and pus discharge from a recently extracted tooth. Radiographs revealed two distinct radiolucencies - a large cyst in the left mandible and a smaller cyst in the right mandible. Histological examination found the left cyst to be a radicular cyst and the right cyst to be a dentigerous cyst. This presented a diagnostic dilemma due to the unusual presentation of multiple cysts occurring bilaterally and with atypical features for the cyst types.
41st Publication -JFMPC- 6th Name.pdf
A 34-year-old male presented with pain and pus discharge from a recently extracted tooth. Radiographs showed two distinct radiolucencies - a large cyst in the left mandible and a smaller cyst in the right mandible. Histological examination found the left cyst to be a radicular cyst and the right cyst to be a dentigerous cyst. This presented a diagnostic dilemma as it is uncommon to have multiple cyst types occurring bilaterally in the mandible without an associated syndrome. Careful radiographic and histological analysis was needed to arrive at the accurate diagnosis and appropriate treatment.
175th publication jfmpc- 6th name
A 34-year-old male presented with pain and pus discharge from a recently extracted tooth. Radiographs showed two distinct radiolucencies - a large cyst in the left mandible and a smaller cyst in the right mandible. Histological examination found the left cyst to be a radicular cyst and the right cyst to be a dentigerous cyst. This presented a diagnostic dilemma as it is uncommon to have multiple cyst types occurring bilaterally in the mandible without an associated syndrome. Careful radiographic and histological analysis was needed to arrive at the accurate diagnosis and appropriate treatment.
Odontogenic cysts i / dental implant courses by Indian dental academy
The document discusses cysts of odontogenic origin, specifically dentigerous cysts and eruption cysts. It defines cysts, provides classifications, and describes the clinical features, pathogenesis, radiological features, histopathological features, and treatment of dentigerous cysts and eruption cysts. It differentiates between dentigerous cysts and eruption cysts and provides images to illustrate key characteristics of each cyst.
Dentigerous Cyst.ppt
Dentigerous cyst is a type of odontogenic cysts and generally occurs in the ages of twenties or thirties. Dentigerous cyst always includes a tooth which cannot complete the eruption process and occurs around the crown by the fluid accumulation between the layers of enamel organ. In rare cases, dentigerous cyst occurs in the first decade of life and develops in an immature permanent tooth as a result of a chronic inflammation of overlying nonvital primary tooth.These cyst often show no symptoms, and they are generally detected by a radiographic examination to find the reason for the delayed eruption.
DENTIGEROUS CYST & CALCIFYING ODONTOGENIC CYST.pptx
DENTIGEROUS CYST- an odontogenic cyst that surrounds the crown of impacted tooth , develops by fluid accumulation between REE(reduced enamel epithelium) and the enamel surface , resulting in a cyst which the crown located within the lumen.
Two Way Approach For Enucleation Of Maxillary Radicular Cyst.
This document describes a case study of a 39-year-old male patient who presented with pain and swelling in the left upper back tooth region. Clinical and radiographic examination revealed a large radicular cyst extending from the upper left canine to third molar region. The cyst was initially enucleated through an intraoral approach. Later, a functional endoscopic sinus surgery was performed through the maxillary antrum to inspect for any residual cyst lining, since the patient also had a deviated nasal septum requiring septoplasty. No residual cyst was observed during endoscopy. This case report demonstrates that large maxillary radicular cysts can be effectively treated through both conventional intraoral enucleation and an end
mixed tumors.pptx
The document discusses several odontogenic tumors including:
Ameloblastic fibroma is a mixed tumor of odontogenic origin composed of neoplastic epithelium and connective tissue that commonly occurs in children and teenagers. It is often associated with an impacted tooth.
Ameloblastic fibro-odontoma is similar to ameloblastic fibroma but contains neoplastic epithelium, neoplastic myxomatous connective tissue, and foci of enamel and dentin formation.
Odontoma is the most common odontogenic tumor and is considered a hamartoma. It has two types, compound and complex, which are composed of enamel and dentin laid down in an abnormal pattern
Dentigerous cyst over maxillary sinus a case report and literature review
This case report describes a 20-year-old male who presented with pain and swelling in the right maxilla as well as recurrent sinusitis. Imaging showed a well-defined radiolucent lesion associated with the crown of an impacted right maxillary third molar, extending into the maxillary sinus. The patient underwent cyst enucleation and removal of the impacted tooth. Microscopic examination confirmed the lesion was a dentigerous cyst. Dentigerous cysts are common odontogenic cysts that develop around the crowns of unerupted teeth. While usually asymptomatic, large cysts can cause expansion and impingement on nearby structures. This case was unusual in that the cyst involved the maxillary sinus
Diagnostic Imaging of Mandible & Maxilla
This document discusses various pathologies that can affect the mandible and maxilla. It begins by discussing cystic masses such as odontogenic cysts (e.g. periapical, residual, dentigerous cysts), non-odontogenic cysts (e.g. solitary bone cyst, aneurysmal bone cyst), and lesions associated with conditions like hyperparathyroidism. It then covers benign tumors including ameloblastoma and odontoma. Radiographic and CT features are provided for each condition along with examples of imaging findings. Differential diagnoses and key distinguishing features are also reviewed.
Tumors of the head and neck
This document discusses various tumors of the head and neck that originate from odontogenic tissues, including the epithelium, mesenchyme, and both tissues. It provides details on several tumor types, including ameloblastoma, adenomatoid odontogenic tumor, calcifying epithelial odontogenic tumor, clear cell odontogenic tumor, odontogenic myxoma, central odontogenic fibroma, cementoblastoma, and odontoma. For each tumor, it discusses characteristics such as typical age, location, imaging appearance, histopathology, differential diagnosis, and treatment options. The document serves as a comprehensive reference for the clinical and pathological features of major odontogenic tumors.
Odontogenic tumors II
Dr. Abdelhady provides a lecture on odontogenic tumors. The lecture aims to help students classify and diagnose odontogenic tumors, examine patients presenting with facial swellings, and determine differential diagnoses and management techniques for mandibular and maxillary swellings. Specific odontogenic tumors discussed include cementoblastoma, odontogenic fibroma, central giant cell granuloma, cherubism, fibrous dysplasia, and ossifying fibroma. Radiographic features, histology, treatment options and prognosis are described for each tumor type.
6 51
This document reports a case study of a 15-year-old girl with a calcifying odontogenic cyst (COC) associated with complex and compound odontoma in her maxilla. Histopathological and immunohistochemical examination was performed. Histopathology revealed ghost cells, calcified tissues, and structures of complex and compound odontoma. Immunohistochemistry showed low cell proliferation (MIB-1) but significant expression of the Bcl-2 protein, suggesting inhibition of apoptotic cell loss is important for growth of this lesion. This case report examines the lesion and discusses classifications and biological behaviors of COCs.
cysts of oral and maxillofacial region.pdf
The document discusses various cysts that can occur in the oral and maxillofacial region. It begins by defining cysts and describing their general characteristics such as being fluid-filled cavities lined by epithelium and growing slowly by expansion. It then describes different types of cysts including true cysts lined by epithelium and pseudo cysts not lined by epithelium. The document further classifies cysts based on their location, discusses their pathogenesis, and provides details on specific cysts such as dentigerous cysts, odontogenic keratocysts, eruption cysts, and lateral periodontal cysts including their definitions, clinical features, radiographic appearances, histology, and complications.
cysts of the oral and maxillofacial region
The document discusses different types of cysts that can occur in the oral and maxillofacial region. It defines cysts and classifies them based on their origin and location. It provides details on the pathogenesis, clinical features, radiographic appearance and histology of specific cysts such as dentigerous cysts and odontogenic keratocysts. Dentigerous cysts are defined as cysts originating from the separation of the dental follicle from around the crown of an unerupted tooth. Odontogenic keratocysts are distinctive cysts that arise from cell rests of the dental lamina and have more aggressive behavior than other cysts. Complications of cysts include recurrence, development of
cystofjawmadhu-191014054840.pdf
The document discusses different types of cysts that can occur in the oral and maxillofacial region. It defines cysts and classifies them based on their origin and location. It provides details on the pathogenesis, clinical features, radiographic appearance and histology of specific cysts such as dentigerous cysts and odontogenic keratocysts. Dentigerous cysts are defined as cysts originating from the separation of the dental follicle from around the crown of an unerupted tooth. Odontogenic keratocysts are distinctive cysts that arise from cell rests of the dental lamina and have more aggressive behavior than other cysts. Complications of cysts include recurrence, development of
most common dental cysts in radiology
Cystic lesions can be classified in various ways, including by location, tissue of origin, and appearance on imaging. The document discusses the definition, causes, clinical presentation, treatment, and radiographic features of different types of cysts including odontogenic cysts like inflammatory periapical cysts and dentigerous cysts as well as non-odontogenic cysts such as nasopalatine cysts. Cysts are typically asymptomatic but can cause swelling, pain, or discharge and appear on imaging as well-defined radiolucent lesions that may impact surrounding structures. Treatment involves surgical removal of the cyst lining through methods like enucleation, marsupialization, or curettage to prevent recurrence
Management of apical lesions
This document discusses the sequelae of pulpitis, including necrotic pulp, acute and chronic apical periodontitis, periapical abscess, periapical granuloma, periapical cyst, osteomyelitis, cellulitis, and periostitis. It describes the clinical features, radiographic appearance, and treatment for each condition. Non-surgical management of apical lesions includes conservative root canal treatment, decompression techniques, aspiration and irrigation, use of calcium hydroxide, lesion sterilization and repair therapy, and the apexum procedure.
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Dentigerous cyst over maxillary sinus a case report and literature review
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Path prac (2)
- 1. Histopathology: Decalcified section in pulp tissue showing dilated B.Vs & extravasated RBCs Diagnosis: Hyperemia of the pulp
- 2. Describe: Patient having red mass protruding in the caries cavity in lower 6 Hsitology: decalcified section showing tooth with large cavity of pulp tissue into pulp cavity , this pulp tissue contain granulation tissue covered by thin layer of epithelium Diagnosis: Pulp polyp
- 3. Patient: Patient have protruded whitish lesion (sequestrum) Histo. : Decalcified section showing bone marrow infiltrated by acute inflammatory cells Diagnose: Acute Osteomyelitis
- 4. Histo : Decalcified section showing bone marrow rich of chronic inflammatory cells Diagnose: Chronic Osteomyelitis
- 5. Clinical : Patient have multiple sinus tracts in chin area
- 7. 1- Diagnosis : Thyoglossal cyst 2- Describe the clinical picture: Swelling at the midline of the neck 3- Describe the histological picture : Cyst cavity in the posterior part lined by S.S.E & C.T and thyroid follicles in the upper part of slide
- 8. 1- Describe the gross appearance of the lesion :- Extracted canine in association with cystic lesion, the cyst attached to the tooth at CEJ 2- Describe the radiograph pic. :- Unilocular well defined periapical lesion in association with unerupted tooth 3- Describe the histology of pic. : Cyst cavity lined by non-keratinized epithelium 4- Diagnosis: Dentigerous cyst
- 9. Diagnosis : Nevoid basal cell carcinoma ( Gorlin Syndrome ) Describe : 1- Multiple basal cell carcinoma 2- well defined radiolucency 3- The histology of odontogenic . . keratocyst 1 2 3
- 10. Clinical Pic : Cyst associated with erupted upper maxillary Histology of eruption cyst: cyst cavity lined by non-keratinized epithelium & C.T
- 11. 1- Extracted tooth associated with cystic lesion 2- Odontogenic Keratocyst 3- Radiolucent lesion in the posterior part of mandible ( associated with vital tooth ) , it may be : Central intraosseuos tumor Metastatic tumor, Odontogenic tumor Odontogenic keratocyst 1 2 3
- 12. 1- Gingival lesion showing nodular mass of the mandibular facial gingiva 2- Cyst cavity lined by epithelium contain : stellate reticulum ( ameloblast like cells ), Ghost cells, calcification area . C.T rich of inflammatory cells 3- Well defined radiolucent lesion in associated with unerupted tooth D.D : Gingival fibromas, Gingival cyst, periapical giant cell granulomas Diagnosis : Gorlin cyst 1 2 3
- 13. Clinical presentation: huge swelling of the jaw X-ray feature : multilocular radiolucency, bone destruction is replaced by small well defined radiolucent areas giving rise to the honeycomb or soap-bubble appearance. Histopathological feature: long anastomosing cords of epithelium cells bounded by columnar/ cuboidal cells, cells within cords are stellate reticulum like cells. Identify the case: plexiform type of ameloblastoma
- 14. D.D Radiographically:- - folliacular type of ameloblastoma. - plexiform type of ameloblastoma. - Ameloblastic fibroma Microscopic variant of the lesion: it is formed of islands of epithelial follicles with microcyst or multi cyst, the individual follicles show central mass of stellate reticulum like cells surrounded by single peripheral layer of ameloblast- like cells, the nuclei of the peripheral cells have reversed polarity. Identify the condition: folliacular type of ameloblastoma.
- 15. D.D: Radiographically:- - pindborg tumor - AOT ( Adenomatoiod odontogenic tumor ) - Gorlin cyst - Ameloblastic fibroma Arrow structure: round area of concentric calcification deposits ( . liesegang rings ) seen in amyloid material. Identify the condition: pindborg tumor
- 16. Clinical feature:- Swelling seen in the posterior mandible Radiograph describe: Radiopaque areas surrounded by a radiolucent . rim Identify the case: Complex odontome
- 17. Describe the radiograph:- Multilocular radiopacity due to large number of denticles ( looks like a bag of teeth The surgical specimen of the lesion describe it: Multiple teeth structure Diagnosis: Compound odontome
- 18. Histopathology: Composed of loose C.T containing little collagen and large amounts of an intercellular substance, so it looks like dental pulp. Identify the case: Odontogenic myxoma
- 20. Clinical : unilateral swelling of the jaw X-ray : radiopacity in lower anterior of the jaw showing giantly form cementoma
- 21. Asymptomatic swelling at lateral aspect of the neck Lined by pseudostratified squamous epithelium ,the wall contains lymphoid tissue Cervical lymphoepithelial Cyst
- 22. Abnormal angulation in the root “Dilaceration”
- 23. Enamel in the root surface “Enamel pearl”
- 24. Taurodontism
- 25. Large pulp chamber “Shell teeth”