title: An unsuspected ameloblastoma in the subpontic region of the mandible with consideration of pathogenesis from the radiographic course.
abstract: The purpose of this report is to document a case of unsuspected ameloblastoma involving the right man dibular subpontic region in a 38-year-old Cambodian female patient. This lesion was purportedly preceded by multiple radiolucencies which were diagnosed as radicular cysts and treated a few times in the past years by enucleation followed by endodontic therapy of the affected teeth. Bridgework restoration of the partially edentulous area was performed. This case report demonstrates radiographic changes that occurred in the periods before and after the diagnosis of ameloblastoma. The case may represent an example of radicular cysts and ameloblastoma occurring as a collision phenomenon, or the ameloblastoma may have arisen as a result of neoplastic transformation of the lining epithelium in an inflammatory odontogenic epithelial cyst.
authors.affiliation: Department of Oral Pathology, Oral Medicine and Periodontology, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: C H
authors.initials: CH
authors.lastname: Siar
authors.forename: K
authors.initials: K
authors.lastname: Nakano
authors.forename: P I
authors.initials: PI
authors.lastname: Chelvanayagam
authors.forename: K H
authors.initials: KH
authors.lastname: Ng
authors.forename: H
authors.initials: H
authors.lastname: Nagatsuka
authors.forename: T
authors.initials: T
authors.lastname: Kawakami
mesh_terms: D000328:Adult; D000564:Ameloblastoma / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008339:Mandibular Neoplasms / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D011842:Radicular Cyst / Q000175:diagnosis* / Q000628:therapy; D011861:Radiography, Dental / Q000009:adverse effects*; D016896:Treatment Outcome
references.citation: J Oral Pathol Med. 2008 Apr;37(4):221-7
references.pmid: 18221325
references.citation: Oral Oncol. 2005 Jan;41(1):99-100
references.pmid: 15598593
references.citation: J Am Dent Assoc. 1973 Oct;87(4):898-900
references.pmid: 4516758
references.citation: Br J Oral Maxillofac Surg. 1993 Jun;31(3):183-6
references.pmid: 7685634
references.citation: J Craniomaxillofac Surg. 1993 Jul;21(5):210-3
references.pmid: 7689599
references.citation: Eur J Med Res. 2009 Jul 22;14(7):315-9
references.pmid: 19661015
references.citation: Eur J Cancer B Oral Oncol. 1995 Mar;31B(2):86-99
references.pmid: 7633291
references.citation: Singapore Dent J. 1990 Dec;15(1):35-7
references.pmid: 2097728
references.citation: Head Face Med. 2007 Sep 25;3:35
references.pmid: 17892598
references.citation: J Okla Dent Assoc. 2007 Jun;98(9):28-9
references.pmid: 17847869