Oncocytoma
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Definition
oncocyte로 구성된 양성의 salivary gland tumor
Clinical Features
① older adults, eighth decade of life
② major salivary gland-특히 parotid gland
③ firm, slowly growing, painless mass
Histopathologis Features
① well - circumscribed tumor
② oncocyte – 풍부한 granular, eosinophilic cytoplasm가진sheets of large, polyhedral cells
③ centrally located nuclei를 가짐
④ little stroma, thin fibrovascular septa
⑤ granularity of the cells - overabundance of mitochondria
⑥ phosphotungstic acid - hematoxylin (PTAH) stain
⑦ glycogen - perodic acid - Schiff (PAS)
Treatment &Prognosis
①surgical excision
oncocyte로 구성된 양성의 salivary gland tumor
Clinical Features
① older adults, eighth decade of life
② major salivary gland-특히 parotid gland
③ firm, slowly growing, painless mass
Histopathologis Features
① well - circumscribed tumor
② oncocyte – 풍부한 granular, eosinophilic cytoplasm가진sheets of large, polyhedral cells
③ centrally located nuclei를 가짐
④ little stroma, thin fibrovascular septa
⑤ granularity of the cells - overabundance of mitochondria
⑥ phosphotungstic acid - hematoxylin (PTAH) stain
⑦ glycogen - perodic acid - Schiff (PAS)
Treatment &Prognosis
①surgical excision
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