Journal of investigative and clinical dentistry · 2010
Distribution pattern of the adenomatoid odontogenic tumor: a retrospective study from the files of a government teaching hospital, Tamil Nadu, Chennai, India.
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Arunaa Sivasubramanian, Ponniah Irulandy
Аннотация
AIM: To determine the distribution and clinicopathologic characteristics of adenomatoid odontogenic tumors from Tamil Nadu, India, to provide meaningful data for comparison among different population groups, mainly in the Asian context.
METHODS: Forty-three adenomatoid odontogenic tumors were reviewed from 493 odontogenic tumors recorded between 1970 and 2008. The data pertaining to age, sex, anatomic site, associated impacted teeth and radiographic details, provisional diagnoses, and macroscopic and microscopic details of the 43 odontogenic tumors were reviewed.
RESULTS: The relative frequency of adenomatoid tumors comprised 8.72% of the total odontogenic tumors. The age range was 9-30 years, with a mean age of 16.88 years for combined adenomatoid odontogenic tumors. The mean age for other variants of adenomatoid odontogenic tumors assessed in this study differed slightly between sexes. Forty occurred within the bone and three peripherally. In general, the maxilla was the predominant site of involvement (72.5%), and the anterior region of jaw was affected in 92.5%. For combined adenomatoid odontogenic tumors, the male-to-female ratio was 1:1.26, and the maxilla-to-mandible ratio was 2.9:1. Microscopically, cystic lesions comprised 37.5% and occurred more often in males with a lower mean age.
CONCLUSION: The present study shows variations in the distribution of adenomatoid odontogenic tumors within the population assessed, but no definite conclusion emerged with regard to regional or ethnic effect.
METHODS: Forty-three adenomatoid odontogenic tumors were reviewed from 493 odontogenic tumors recorded between 1970 and 2008. The data pertaining to age, sex, anatomic site, associated impacted teeth and radiographic details, provisional diagnoses, and macroscopic and microscopic details of the 43 odontogenic tumors were reviewed.
RESULTS: The relative frequency of adenomatoid tumors comprised 8.72% of the total odontogenic tumors. The age range was 9-30 years, with a mean age of 16.88 years for combined adenomatoid odontogenic tumors. The mean age for other variants of adenomatoid odontogenic tumors assessed in this study differed slightly between sexes. Forty occurred within the bone and three peripherally. In general, the maxilla was the predominant site of involvement (72.5%), and the anterior region of jaw was affected in 92.5%. For combined adenomatoid odontogenic tumors, the male-to-female ratio was 1:1.26, and the maxilla-to-mandible ratio was 2.9:1. Microscopically, cystic lesions comprised 37.5% and occurred more often in males with a lower mean age.
CONCLUSION: The present study shows variations in the distribution of adenomatoid odontogenic tumors within the population assessed, but no definite conclusion emerged with regard to regional or ethnic effect.