seborrheic keratosis, a benign, well-circumscribed, slightly raised, tan to black, warty lesion of the skin of the face, neck, chest, or upper back. The macules are loosely covered with a greasy crust that leaves a raw pulpy base when removed. Itching is common. Treatment includes curettage, electrodesiccation, or cryotherapy. Also called seborrheic wart, acanthoma verrucosa seborrheica.
