A Rare Clinical Presentation of an Osteochondroma of Coronoid Process of Mandible

Muralee Mohan Choontharu, Sajad Ahmad Buch, G Subhas Babu, Renita Lorina Castelino, Shruthi Rao, Kumuda Rao


Osteochondroma (osteocartilaginous exostosis) is one of the most common benign tumors of bone but is rare in the craniofacial region. Only a few cases of osteochondroma of the coronoid process have been reported in the literature, since the time of its discovery (osteochondroma of a coronoid process) by Jacob in 1899. We present a case of osteochondroma of the left coronoid process in a 16-year-old female patient. Contrary to the literature, our patient had no limited mouth opening despite a close approximation of left hyperplastic coronoid process with zygomatic arch, making it a unique case among similar cases. Plain radiography can be used for this hyperplastic condition but due to its inherent distortion and being only two-dimensional (2D) it has a limited diagnostic advantage. Cone beam computed tomography (CBCT) was employed for necessary diagnostic information. We managed our patient with an intraoral coronoidectomy.

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pISSN: 2345-6485                        eISSN: 2345-6418