Squamous cell carcinoma originating in folliculitis decalvans.

Abstract

Folliculitis decalvans is a chronic and progressive scarring alopecia at the vertex and occipital scalp with a predilection for middle-aged men. Squamous cell carcinoma is an exceedingly rare complication of folliculitis decalvans, reported in 5 cases to date. Herein, we present a case of squamous cell carcinoma of the scalp in a patient diagnosed with recalcitrant folliculitis decalvans and review the clinicopathologic characteristics of all reported cases in the literature.