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HOME > J Pathol Transl Med > Volume 40(4); 2006 > Article
Case Report Ameloblastoma Associated with Dentinogenic Ghost Cell Tumor: A Case Report.
Tae Jung Kim, Youn Soo Lee, Byung Kee Kim, Kyo Young Lee
Journal of Pathology and Translational Medicine 2006;40(4):297-302
DOI: https://doi.org/
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Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 150-713, Korea. lys9908@catholic.ac.kr

Dentinogenic ghost cell tumor (DGCT) is an uncommon odontogenic tumor. It is characterized by islands of odontogenic epithelial cells that contain numerous ghost cells and dysplastic dentin. Occasionally, DGCT combines with other odontogenic tumors, such as ameloblastoma. We report here on a 21-year-old female who complained of a tender solid mass in the left maxilla for the 7 month previous to her admission. MRI revealed a relatively well demarcated mass in the left maxilla with heterogenous signal intensity, measuring 3.2 x 2.8 cm, and this mass had invaded the left palate. Microscopically, the tumor was composed of nests of odontogenic epithelium that contained ghost cells and calcification with dysplastic dentin, which is all consistent with DGCT. Localized area showed odontogenic epithelial follicles that had peripheral palisading and satellite reticulum without ghost cells and dentin, and this is consistent with ame- loblastoma. The immunohistochemistry revealed cytokeratins, EMA, S100 and Bcl-2 positivity in areas of the DGCT and ameloblastoma. In the ameloblastoma, Bcl-2 positivity was noted in the palisading basal cells. We concluded that the tumor was an ameloblastoma associated with DGCT.

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