Residual cementoblastoma: An unusual presentation of a rare odontogenic tumor

Publication date: Available online 15 November 2017
Source:Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology
Author(s): Lucas Ribeiro Teixeira, Jessica Luana dos Santos, Luciana Yamamoto Almeida, Carla Bento Nelem-Colturato, Ricardo Ferreira de Paula, Fernando Radaelli Osório Oliveira, Jorge Esquiche León
Cementoblastoma is a benign ectomesenchymal odontogenic tumor characterized by the formation of cementum mass continuous with the tooth root, preferentially a permanent mandibular first molar. Clinically, the tumor shows a tender, sometimes painful, cortical plate expansion, frequently in male patients under 30 years old. Radiographically, the lesion exhibits a radiopaque mass, surrounding by a thin radiolucent rim, and attached to the tooth root. Microscopically, it is visualized a calcified matrix lined by large hyperchromatic cementoblasts with radiating columns at the periphery. Treatment of choice is surgery. Interestingly, rare cases of residual (after tooth extraction only) and recurrent (after tumor removal plus tooth extraction) cementoblastomas have been reported, which can be misdiagnosed if an appropriate clinicopathological correlation is not considered. Here, we present a rare case of residual cementoblastoma affecting an 18-year-old male patient at level of permanent mandibular first molar. Thus, residual cementoblastoma is an unusual presentation which should be included in the differential diagnosis of cementum-forming and bone-forming tumors affecting the jaws.



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