Peripilar casts.
D000328:Adult; D000506:Alopecia Areata / Q000209:etiology; D003424:Crohn Disease / Q000150:complications; D012628:Dermatitis, Seborrheic / Q000209:etiology; D005499:Folliculitis / Q000209:etiology; D006197:Hair / Q000473:pathology; D006801:Humans; D007642:Keratosis / Q000209:etiology; D008010:Lichen Planus / Q000209:etiology; D008297:Male; D012871:Skin Diseases / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology / Q000473:pathology; D014801:Vitamin A / Q000627:therapeutic use
D014801:Vitamin A