title: [Extra-osseous mandibular ameloblastoma].
abstract: Gingival ameloblastoma is a rare odontogenic tumor which shares the same histology as endo-osseous ameloblastoma but from which it differs in terms of its course by the absence of "local malignancy". There would appear to be two probable origins concerning this lesion: Serre debris and the epithelium of the gingival mucosa. However, the etiopathogenesis remains controversial, raising problems of pathological distinction from gingival basal cell carcinoma.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000564:Ameloblastoma / Q000473:pathology*; D005260:Female; D005887:Gingival Neoplasms / Q000473:pathology*; D006801:Humans; D008334:Mandible
vernacular_title: Améloblastome mandibulaire extra-osseux.