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유희준 ( Hee Joon Yu ),양홍윤 ( Hong Yoon Yang ),김윤석 ( Yun Suck Kim ),은철 ( Chul Eun ),장세진 ( Se Jin Jang ),박용욱 ( Yong Wook Park ) 대한피부과학회 1998 대한피부과학회지 Vol.36 No.2
Trichoadenoma is a rare cutaneous tumor that was first described by Nikolowski in 1958. It usually occurs as a single tumor on the face and its size varies from 3 to 50mm in diameter. It may arise any time during adult life. This tumor is less mature than trichofolliculoma and more differentiated than trichoepithelioma, and it is considered as a benign tumor with differentiation toward the infundibular portion of the pilosebaceous canal. In this report, we describe a 61-year-old women who developed trichoadenoma on the left shoulder of 3 years duration. The lesion was asymptomatic and had grown slowly. Histopathological findings showed numurous horn cysts with central keratinous material and solid tumor islands reaching to the deep dermis. Immunohistochemical studies showed negative findings for eccrine differentiation. (Korean J Dermatol 1998;36(2) . 372-375)
유희준,권상진,조지형,양홍윤,박용욱,장세진 ( Hee Joon Yu,Sang Jin Kwon,Ji Hyeung Cho,Hong Yoon Yang,Yong Wook Park,Se Jin Jang ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.1
We experienced a case of arteriovenous hemangioma showing Dariers sign on the forehead of a 43-year-old man. He presented with a single, 1 * 1.5cm sized, violaceous, asymptomatic nodule with a history of an intermittent wheal at the lesional site. This skin lesion showed Dariers sign clinically and proliferation of mast cells histopathologically with the punch biopsy specirnen suggesting urticaria pig- mentosa. Howerer, we could diagnose it as a arteriovenous hemangioma on complete excision, as the specimen showed arteriovenous proliferation with increased mast cells in a perivascular pattern. This case showed confusing clinical signs and showed the importance of complete excision for the diagnosis of a small skin tumor especially when a vascular proliferating tumor is suspected. (Kor J Dermatol 1997;35(1): 209-213)