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Open Access Publications from the University of California

Dermatology Online Journal

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Trichofolliculoma: a rare variant of hair follicle hamartoma


Trichofolliculoma is a rare hair follicle hamartoma, which is often regarded as a hair follicle tumor. Mostly, it presents as a papule or nodule, involving the skin of the face and scalp area. A central, dilated keratin plugged ostium with vellus hair(s) is often present. We report a 19-year-old woman with typical clinical and histopathological findings of trichofolliculoma.

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