Ameloblastoma with gingival ulcer.

Ameloblastoma usually presents as a painless swelling of the jaw, but the chief complaint is rarely of ulceration. A case of ameloblastoma with a complaint of gingival ulcer in a 75-year-old Japanese male who was treated by an en bloc removal of the tumor with gingival ulcer is described and discussed. There is no evidence of recurrence, and the postoperative course was uneventful.