A nevus sebaceous is a rare birthmark present on the face, neck, forehead, or scalp. Most are benign and unchanged through life, but some may develop tumors. A nevus sebaceous is a rare type of ...
A nevus sebaceous is a mole patch that is salmon or yellow-colored and most often appears on your scalp, neck, and face. They are less common on your arms, legs, and trunk. Sebaceous nevi usually ...