title: A solitary, exophytic, crateriform lesion on the mandibular retromolar gingiva.
abstract: A solitary, intraoral keratoacanthoma discovered on the mandibular left retromolar mucosa in a 64-year-old black male is reported. This is the eighth lesion of this type reported to date. The patient had stopped smoking 5 years earlier and gave no history of an occupation involving pitch or tar. The lesion had the typical clinical and microscopic features of a keratoacanthoma. A 6-month recall examination showed no evidence of recurrence of the lesion.
authors.forename: R K
authors.initials: RK
authors.lastname: Heidenreich
authors.forename: R K
authors.initials: RK
authors.lastname: Gongloff
authors.forename: W B
authors.initials: WB
authors.lastname: Wescott
mesh_terms: D005882:Gingival Diseases / Q000473:pathology*; D006801:Humans; D006965:Hyperplasia; D007636:Keratoacanthoma / Q000473:pathology*; D008297:Male; D008334:Mandible; D008875:Middle Aged; D009061:Mouth Mucosa / Q000473:pathology