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10 marks long essay in detail from shafers 1. Categorize the cysts of odontogenic origin. Discuss the etiology, clinical features, radiographic and histopathologic features, treatment, and prognosis of odontogenic keratocyst (OKC). . 2. Classify benign and malignant epithelial tumors. Describe oral squamous cell carcinoma (OSCC). . 3. Classify fibro-osseous lesions. Describe the etiology, clinical, radiologic, and histopathological features of fibrous dysplasia. . 4. Classify odontogenic cysts. Describe the clinical and histopathological features of calcifying epithelial odontogenic cyst. . 5. Classify odontogenic tumors and explain the clinical, radiographic, and histopathological features and treatment of ameloblastoma. . 6. Classify odontogenic tumors. Define ameloblastoma. Describe the clinical and radiologic features of ameloblastoma. Add a note on histologic variants and treatment. . 7. Classify odontogenic tumors. Describe ameloblastoma. Add a note on malignant ameloblastoma. . 8. Classify odontogenic tumors. Describe Adenomatoid Odontogenic Tumor (AOT) in detail. . 9. Classify odontogenic tumors. Discuss in detail the etiopathogenesis, clinical features, radiographic features, histopathology, and management of Adenomatoid Odontogenic Tumor (AOT). . 10. Classify odontogenic tumors. Write in detail the radiological features and histopathology of ameloblastoma. . 11. Classify oral potentially malignant disorders (OPMDs). Describe oral lichen planus. . 12. Classify salivary gland tumors. Write in detail about the aetiopathogenesis, clinical features, and histopathological features of mucoepidermoid carcinoma.

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All four essays are complete. Here is a quick summary of what was covered:

Summary of All 4 Essays

Essay 4 - Calcifying Epithelial Odontogenic Cyst (Gorlin Cyst / COC)

Covered: Full classification of odontogenic cysts, definition, dental lamina origin, variable age/sex/site (anterior jaw, slight maxillary predominance), intraosseous vs. peripheral forms, "snowdrift" radiographic calcifications, ghost cells as the hallmark histopathologic feature, enucleation treatment, excellent prognosis.

Essays 5/6/7/10 - Ameloblastoma

Covered: Full WHO odontogenic tumor classification, definition as locally aggressive benign neoplasm, MAPK/BRAF V600E mutations in 90%, four WHO variants (conventional, unicystic, peripheral, metastasizing). Detailed tables of all 6 histologic subtypes (follicular, plexiform, acanthomatous, granular cell, desmoplastic, basal cell), "piano key" reversed polarization, soap-bubble multilocular radiolucency, root resorption, resection with 1 cm margins, BRAF-targeted therapy for recurrence. Full section on malignant ameloblastoma vs. ameloblastic carcinoma.

Essays 8/9 - Adenomatoid Odontogenic Tumor (AOT)

Covered: Definition, "two-thirds rule" mnemonic, three variants (follicular, extrafollicular, peripheral), anterior maxilla in young females, canine association, unilocular radiolucency extending below CEJ with radiopaque foci, duct-like structures + tumor droplets + calcifications on histopathology, enucleation as sufficient treatment, virtually no recurrence.

Essay 11 - Oral Lichen Planus

Covered: OPMD classification, T-cell immunopathogenesis in detail (CD4+/CD8+, MHC class I/II, RANTES, mast cell, MMP), Wickham's striae, five clinical variants (reticular, plaque, atrophic, erosive, bullous), bilateral buccal mucosa distribution, histopathologic triad (hyperkeratosis + basal cell degeneration + band-like lymphocytic infiltrate) + Civatte bodies, DIF showing shaggy fibrin, topical steroids/tacrolimus treatment, 0.5-2% malignant transformation risk.
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