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Ameloblastoma in the Hong Kong Chinese. Part 1: systematic review and clinical presentation

¹ Division of Oral and Maxillofacial Radiology, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Canada; ² Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China; ³ Oral Radiology Unit, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China

*Correspondence to: David MacDonald-Jankowski, Division of Oral and Maxillofacial Radiology, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z3; Email: dmacdon{at}interchange.ubc.ca

Received 7 July 2003; revised 4 February 2004; accepted 4 February 2004

Objectives: The aim of Part 1 of this study was to determine the clinical presentation of central ameloblastomas in the Hong Kong Chinese and to compare them with other reported series by a systematic review (SR).

Methods: The study had two elements, that of a complete series of all ameloblastomas presenting at a major Chinese maxillofacial surgical unit as well as a SR. The files of the Department of Oral and Maxillofacial Surgery of the University of Hong Kong between 1989 and 2000 were reviewed for ameloblastoma cases. The relevant literature was identified by electronic databases, review of citation lists and hand searching of key journals. The principal selection criterion was that the study should represent a complete collection of cases.

Results: Fifty-three published series of cases were included in the SR. They generally reported little more than sex, mean age and range, and affected jaw. Only 16 studies considered recurrence. Sixty-one cases of ameloblastoma were identified in the present study. There were 30 males and 31 females, contrary to the predilection for males in other reports. Eighty-four percent of cases were found in the mandible, agreeing with the SR. The mean age at first presentation was 30.5 years, lower than that of the SR; only a Korean report and a small Bangladeshi report showed younger presentation. The present report had the shortest period between first becoming aware of the lesion and seeking treatment; this period was significantly shorter for younger patients. Although the present study was in agreement with the SR with regard to swelling, this study reported a significantly higher proportion of patients presenting with pain.

Conclusion: Although the presentation of ameloblastoma within this Chinese community was broadly similar to that observed in other populations, it differed in a number of important respects. It had a younger age at first presentation than many other communities, including other Orientals; it was associated with a shorter period between first becoming aware of the lesion and seeking treatment, particularly in the young; and it was more frequently associated with pain than in the SR.

Keywords: radiography, dental; ameloblastoma; odontogenic tumours

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				D. MacDonald-Jankowski, R Yeung, K. Lee, and T. Li Ameloblastoma in the Hong Kong Chinese. Part 2: systematic review and radiological presentation Dentomaxillofac. Radiol., May 1, 2004; 33(3): 141 - 151. [Abstract] [Full Text] [PDF]