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Extraosseous calcifying epithelial odontogenic tumor

2013-07-26 15:23:57 Source: Author: ZHANG Guo-zhi, ZHENG You-li, ZHANG Guo-quan. Hits:0
[Summary] Extraosseous calcifying epithelial odontogenic tumor is an extremely rare odontogenic neoplasm. To our knowledge, only 37 cases have been reported in the English literature of MEDLINE from 1966 to 2011 and the Chinese literature of CHKD from 1994 to 2011. Based on literature review, it was found that extraosseous calcifying epithelial odontogenic tumor had the following clinical features: patient age at the time of diagnosis ranged from 3 to 71 years (mean: 35.8 years); 19 cases were females and 13 cases were males, with a male to female ratio of 1:1.46; tumor size ranged from 0.5 to 4.0 cm (mean: 1.76 cm); the most common site affected by the tumor was the gingivae with a mandible to maxilla ratio of 1:1; histological characteristic was basically the same as intraosseous calcifying epithelial odontogenic tumor ; the recurrence rate was 5.4%. Because the tumor had a superficial bone erosion capability, effective treatment should completely excised the tumor combined with curettage of bone surface.
[Key words]  Extraosseous calcifying epithelial odontogenic tumor;  Peripheral odontogenic tumor; Pindborg tumor

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