title: Malignant transformation of peripheral ameloblastoma.
abstract: A peripheral (extraosseous) ameloblastoma was excised from the maxillary left tuberosity of an 82-year-old man. It recurred twice over a 5-year period, once as squamous cell carcinoma and again as undifferentiated carcinoma. Analysis of the literature suggests that peripheral ameloblastomas may have the same potential for malignant transformation as intraosseous ameloblastomas.
authors.affiliation: Department of Oral Pathology, Biology, and Diagnostic Sciences, University of Medicine & Dentistry of New Jersey, New Jersey Dental School, Newark.
authors.forename: E
authors.initials: E
authors.lastname: Baden
authors.forename: J L
authors.initials: JL
authors.lastname: Doyle
authors.forename: V
authors.initials: V
authors.lastname: Petriella
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000564:Ameloblastoma / Q000473:pathology*; D002277:Carcinoma / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002471:Cell Transformation, Neoplastic; D005887:Gingival Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D008441:Maxillary Neoplasms / Q000473:pathology; D008444:Maxillary Sinus Neoplasms / Q000473:pathology; D009364:Neoplasm Recurrence, Local