A 45-year old white woman presented with a chief complaint of a loose crown on the maxillary right central incisor. There was a gray-black pigmented area on the alveolar mucosa in the apical region of the maxillary left central incisor and a firm mass in the left upper lip.
After you have finished reviewing the available diagnostic information, make the diagnosis.
Your session is about to expire. Do you want to continue logged in?