Trichostasis spinulosa
Trichostasis spinulosa is a common but rarely diagnosed disorder of the hair follicles that clinically gives the impression of blackheads, but the follicles are filled with funnel-shaped, horny plugs that are bundles of vellus hairs.: 768

Diagnosis
Standard skin surface biopsy (SSSB) is a noninvasive method used for diagnosis.

Treatment
See also
List of cutaneous conditions


== References ==