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

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

doi:10.30476/dentjods.2018.41820

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

Document Type : Case Report

Authors

Muralee Mohan Choontharu ¹

Sajad Ahmad Buch ²

G Subhas Babu ³

Renita Lorina Castelino ³

Shruthi Rao ²

Kumuda Rao ³

¹ Consultant Oral and Maxillofacial Surgeon, Surakhsha Dental Clinic, Manjeshwar, Kasargoad, 671323, Kerala, India

² Post Graduate Student, Department. of Oral Medicine and Radiology, A B Shetty Memorial Institute Of Dental Sciences, NITTE University, Mangalore- 575018, Karnataka, India.

³ Dept. of Oral Medicine and Radiology, A B Shetty Memorial Institute OF Dental Sciences, NITTE University, Mangalore- 575018, Karnataka, India.

https://doi.org/10.30476/dentjods.2018.41820

Abstract

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.