Osteochondromas are frequently found in the general skeleton but are rare in the condylar area of the mandible. Most reported condylar outgrowths have been classified as osteochondromas, 1-20 osteomas, 21 giant cell tumors, 22 malignant tumors, 23 exostoses, 24 and hyperplasias. 25 The pathogenesis of osteochondroma is still controversial, and Thoma's description of the differentiation between an osteoma, osteochondroma, and hypertrophy is not always easy to apply. 26 The largest review in the literature known to us comprises 27 cases. 15 In that report, the difficulty in differentiation between an osteochondroma and other condylar lesions, particularly chondroma, was pointed out. Accordingly, 7 of the 27 reported cases had to be excluded because of false or inaccurate information and diagnosis. This further reduction in the number of cases underscores how uncommon this lesion is. The classic histologic appearance of an osteochondroma is similar to that of the mandibular condyle during the period of endochondral ossification. The lesion consists of proliferating chondrocytes with overlying periosteum. Cancellous bone is being formed by enchondral ossification and remodeled under a cartilaginous cap. 19 The most common clinical symptoms are malocclusion, with a lateral open bite on the affected side and a crossbite on the contralateral side, as well as progressive facial asymmetry. 19 We present a case of osteochondroma of the mandibular condyle with detailed imaging findings. In contrast to this, the previously mentioned reports included only plain radiographs and computed tomography (CT). In this case, magnetic resonance imaging (MRI) proved to be a significant factor in establishing the diagnosis. The treatment in this case was also unusual. The typical treatment involves complete condylectomy, with removal of the tumor. Yet, despite a relatively large extension of the osteochondroma, this case was treated with selected tumor removal without condylectomy.