Tehran University of Medical Sciences Journal of Craniomaxillofacial Research 2345-5489 4 3 2017 10 08 410 413 EN Mohammad Davudov Department of Oral and Maxillofacial Surgery. Azerbaijan Medical University Baku. Azerbaijan. Chingiz Rahimov Department of Oral and Maxillofacial Surgery. 19 mayıs University. Samsun Turkey. Shahin Mohammadov Department of Pathology and Laboratory Medicine, Azerbaijan National Cancer Center, Baku. Azerbaijan. Vugar Qurbanov Department of Oral and Maxillofacial Surgery. 19 mayıs University. Samsun Turkey. Shahin Osmanov Department of Pathology and Laboratory Medicine, Azerbaijan National Cancer Center, Baku. Azerbaijan. 2017 10 08 2017 10 08 Chondroblastoma is a highly destructive tumor, derived from immature cartilage cells, typically occurring in epiphyses of the long bones of adolescents and young adults. Those occurring in the temporal bone and TMJ area are likely to mimic TMJ symptoms. We describe the clinical presentation, radiographic features, differential diagnosis, and treatment for this unusual tumor. The relevant literature on the subject is reviewed, and recommendations for appropriate diagnostic investigation applicable for tumors in this region is presented. Key words: Chondroblastoma, TMJ, Condylectomy. https://jcr.tums.ac.ir/index.php/jcr/article/view/175 https://jcr.tums.ac.ir/index.php/jcr/article/download/175/194