Ann Dermatol.  1992 Jan;4(1):41-44. 10.5021/ad.1992.4.1.41.

A Case of Inverted Follicular Keratosis

Abstract

I report a case of inverted follicular keratosis in a 68-year-old woman who presented a solitary, asymptomatic, slightly brownish verrucous nodule on her nose, present for 3 years. The lesion was characterized histologically by focal hyperkeratosis, marked acanthosis, horn cysts, numerous squamous eddies and sebaceous differentiation of the basaloid cells in the epidermis.

Keyword

Inverted follicular keratosis; Squamous eddy; Sebaceous differentiation

MeSH Terms

Aged
Animals
Epidermis
Female
Horns
Humans
Keratosis*
Nose
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