Hair follicle tumors of the skin.
D006197:Hair; D006801:Humans; D006965:Hyperplasia; D009506:Nevus / Q000473:pathology; D009508:Nevus, Pigmented / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology*; D013544:Sweat Gland Neoplasms / Q000473:pathology