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CYSTIC AMELOBLASTOMA: A CLINICO-PATHOLOGIC REVIEW


A.O. Lawal, A.O. Adisa and M.A Olajide

Department of Oral Pathology, College of Medicine, University of Ibadan, Nigeria.


ABSTRACT

Objective: Cystic ameloblastoma represent 10-15% of all intra osseous ameloblastomas and appear to be less aggressive than the solid ameloblastomas. The aim of this study was to examine the clinico-pathologic characteristics of cystic ameloblastomas seen at a tertiary health care centre.

Materials: All cases diagnosed as cystic ameloblastoma in the Oral Pathology Department of University College Hospital, Ibadan over a 10 year period were investigated for age, gender, location of lesion, treatment, and follow-up. The cases were classified as luminal, intraluminal or mural, based on Ackermann classification. The data was entered into the statistical package for the social sciences version 18 (SPSS 18) and results expressed as percentages.

Results: Fifteen cystic ameloblastomas, representing 14.3% of a total of 105 ameloblastoma cases were seen. The mean age was 28.9(±14.5) years with 73.4% occurring in the second and third decades. The male:female ratio was 2:3. Fourteen (93.3%) of the lesions were in the mandible while only one (6.7%) was in the maxilla. The mural variant was the most common histological variant with 6(40%) cases while the luminal and intra-luminal had 4(26.7%) and 5(33.3%) respectively. The multilocular radiologic appearance was more common than the unilocular in this study (ratio 8:4). Cystic ameloblastoma with multilocular appearance occurred in a higher age group (mean age 31yrs) when compared with the unilocular type which had a mean age of 16.3years.

Conclusion: This study shows similar findings with previous studies but shows a higher multilocular radiological appearance as compared to unilocular variant and no case of recurrence.

Keywords: Cystic ameloblastoma, Clinico-pathologic review, Uni-locular, Multi-locular

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Correspondence:

Dr. A.O. Lawal

Department of Oral Pathology,

College of Medicine,

University of Ibadan

Tel: +2348055133964

Fax: +23422411768

E-mail: lawaloluwatoyin@gmail.com