Which pathological structure demonstrates the presence of cholesterol clefts:___________?
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Answer: A. Keratocyst
Explanation
Odontogenic keratocysts characteristically contain cholesterol clefts within their fibrous wall. These clefts represent dissolved cholesterol crystals accumulated from cell breakdown. They are visualized microscopically as empty needle-shaped spaces in the capsule. Odontogenic keratocysts are known for their high recurrence rate and aggressive growth. They are lined by a thin parakeratinized stratified squamous epithelium. Mutations in the PTCH gene are frequently implicated in their pathogenesis.
Complete surgical removal is necessary to minimize the risk of lesion recurrence. Radiographic presentation often shows a well-defined multilocular radiolucency in the jaw. Histopathological evaluation confirms the diagnosis based on unique epithelial features. Periodontal cysts are inflammatory lesions that rarely contain prominent cholesterol clefts. Aneurysmal cysts are pseudocysts filled with blood and lack typical odontogenic features. Hemorrhagic bone cysts consist of empty cavities without characteristic keratinizing epithelium.
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