Abstract
Eruptive vellus hair cyst is a rare and benign dermatological condition in the
development of vellus-type hair follicles. It affects mainly children and young
adults, and is characterized by multiple asymptomatic papules, especially on the
trunk. We report the case of a 33-year-old white man who presented multiple
erythematous papules and pustules located on the trunk for about five years,
refractory to topical treatments for acne. Dermoscopy revealed oval lesions with
eccentric exulceration and rare protruding filiform structures. We established
the diagnosis of eruptive vellus hair cyst based on the findings of dermoscopy
and histopathological examination.