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KMID : 0363219930310010127
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Korean Journal of Dermatology
1993 Volume.31 No. 1 p.127 ~ p.130
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Two Cases of Trichofolliculoma
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Ro Young-Suck
Kim Young-Tae
Kim Jae-Hong
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Abstract
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Trichofolliculoma is an adnexal tumor of hair follicle origin, considered to be of intermediate differentiation between a hair follicle neveus, a simple hyperplasia of the hair follicle, and trichoepithelioma, Which usually lacks mature hair
follicles. Grossly, the tumor usually appears on the head or neck as a 0.5 to 1.0cm solitary white to pearly papule. Many lesions show a cental pore, and occasionally woolyor cottony hairs may protrude from this pore. Histologically, trichofolliculomas are characterized by a central dilated follicle filed with keratin or hair. Radiating from this "primary" hair follicle are numerous "secondary" hair follicles of varying degree of maturation. An organized fibrovascular stroma surrounds these epithelial structure, giving it a well-defined nodular appearance. We presented here two case of trichofolliculoma with typical clinical and histopathological findings, one in a 65 year-old female and the other a 56 year-old males (Kor J Dermatol 1993 ; 31 (1) : 127-130)
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KEYWORD
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Trichofolliculoma, primary hair follicle, Secondary hair follicles
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