Trichostasis spinulosa.
Usually occurring on the mid-face, especially on the nose, trichostasis spinulosa occurs more commonly in young, adult black women. The lesions of trichostasis spinulosa resemble open comedones (blackheads). It may be treated with tweezing, dipilatory wax, and topical retinoic acid.
D000328:Adult; D005148:Facial Dermatoses / Q000473:pathology*; D005260:Female; D006197:Hair; D006801:Humans; D009666:Nose / Q000473:pathology