Ameloblastoma of the maxilla. Case report

Abstract

A basal cell maxillary ameloblastoma became obvious as an asymptomatic swelling of the left buccal sulcus and alveolar process, although a large extension into the maxillary sinus up to the nasal conchae and the orbital floor had already occurred. The painless and slow growth of the lesion, the thin bone of the upper jaws, the adjacent cavities and the vital structures are the main factors for delay in recognition and thus the potentially lethal result of a maxillary ameloblastoma. A review of location, age, sex and race predilection, clinical course, radiographic appearance, histological types and treatment methods is made.

Basal cell ameloblastoma–review of literature with report of three cases

“…The posterior mandible has a definite predilection for this variant although cases have been reported in the maxilla. 3,5,6 The most common presenting symptom in basal cell variant was swelling followed by ulceration of the oral mucosa as seen in two of the three cases reported. The radiologic appearance of this variant is most commonly multilocular-mulicystic pattern as seen in these cases.…”

“…The maxillary ameloblastoma needs to be treated more aggressively due to the potential for spread of the tumor due to increase in the cancellous spaces in the maxillary bone and the proximity to vital structures. 5 Segmental resection was done in two cases of the mandible; and partial maxillectomy was done for the lesion in the maxilla.…”

Extraosseous Ameloblastoma of Maxillary Gingiva- A Case Report

“…Falkson in 1879, described this lesion in detail, but the term 'ameloblastoma' was coined by Churchill in 1933 [7]. It represents approximately one per cent of all oral tumours, with nearly 80 % of ameloblastomas occurring in the mandible.…”

“…About 20 % of them occur in the maxilla. They develop from the odontogenic epithelium and its derivatives or remnants [7]. Extraosseous or peripheral ameloblastoma accounts for 2-10 % of all ameloblastomas.…”

“…The extension or resection in these sites needs further study, as the incidence of tumour at these sites is very rare. Malignant ameloblastoma are extremely rare [7]. Edmondson et al was the first to report a case of extraosseous ameloblastoma with malignant transformation [11].…”