가족력을 보인 다발성 증식성 모낭종양-1예 보고-
Multiple Proliferating Trichilemmal Tumors. with Ordinary Triehilemmal Cysts-A case report-
소속 상세정보
김인숙/In Sook Kim
손진희/안혜선/서정일/박효숙/김수조/손숙자/Jin Hee Sohn/Hye Seon Ahn/Jung Il Suh/Hyo Sook Park/Soo Jo Kim/Sook Ja Sohn
KMID : 0357919870210030207
Abstract
Proliferating trichilemmal tumor is one of rare benign tumors of the skin appendages,
considering as hamartoma of the terminal hair follicle, isthmic segment of the outer root
sheath.
We report a case of numerous proliferating trichilemmal tumors admixed with ordinary
trichilemmal cysts with familial history in 64·year-old man. He has total 157 lesions,
which are chiefly located in scalp (48), back (32), and also face, neck, trunk, extremities.
Histologically, the tumor is composed of irregularly arranged and anastomosed
trabeculae, lobules, or sheets of proliferated trichilemmal squamous epithelium with
peripheral palisading of the basaloid cells. Several layers of squamoid or ovoid cells have
PAS-positive clear cytoplasm. And it also shows abrupt amorphous, trichilemmal
keratinizaiton. Some squamous eddies with mild cellular atypism are associated, but
definite invasion or other evidence of the malignancy is not found. Usual multiple
trichilemmal cysts are admixed with tumor and occasionally exhibit connection between
them.
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