Journal of AdvancedMedical and Dental Sciences Research

Background: Osteochondroma is a benign neoplasm which usually develops in long bones and very rarely occurs in craniofacial bones. In the craniofacial region, condyle and coronoid process of the mandible are the most commonly affected areas. Osteochondromas occurring in mandibular angle is extremely rare. Case Report: This paper is the first report of an osteochondroma of the mandibular angle in a Moroccan male. The patient presented with a painless bony hard swelling over the left side of the lower jaw. Computed tomography showed an irregular bony exostosis, with features suggestive of an osteochondroma. Osteotomy was carried out successfully along the lateral margin of the mandibular bone. The patient showed no signs of recurrence during the 2 years period following the surgical procedure. Discussion: Osteochondroma, is one of the commonest bony lesions of the axial skeleton, with an incidence exceeding 50% for all cases. Many cases of osteochondroma of the mandible have been reported in the English-language literature, but almost all cases have arisen from the condyle and the coronoid process, and only two cases at the angle of mandible have been reported. For treatment, radical excision including the surrounding periosteum is strongly recommended, and recurrence of osteochondroma is extremely rare. Conclusion: This article describes the details of a very rare case of OC of the mandibular angle. CT with histopathological examination confirmed the diagnosis. Local resection of the mass is more conservative for treating solitary osteochondroma.
Key words: Osteochondroma, Mandibular angle, Moroccan male