Proximal clavicular osteochondroma: A report of an unusual site

Abstract

Background: Osteochondromas are benign surface tumors that comprise a large sum of all bone tumors. They can present as solitary lesions or part of a collective such as in hereditary multiple osteochondromas (HMO). Generally, they are asymptomatic but can present in some cases with complications such as pain, Horner syndrome, plexopathy, tendinopathy, and even erosion into adjacent structures. Methods: We present one case of clavicular osteochondroma that presented in our clinic and was treated surgically and later confirmed using histopathology. The patient's health record was reviewed for the following: demographics, visits, imaging modalities, management, outcome, and histopathology. Results: Our 14-year-old patient had X-rays and ultrasound studies done, revealing characteristics of osteochondroma of the clavicle. The size of the lesion and resulting cosmetic deformity warranted surgical intervention. Osteotomy was done and the specimen was sent to histopathology which confirmed the prior suspicion of osteochondroma. Conclusions: Osteochondromas are mostly benign and asymptomatic but can develop serious complications. Thus, early detection and diligent observation, especially in young patients, are essential to prevent degeneration or complications.

Keywords

• Exostosis
• Osteochondroma
• Clavicle
• Tumor
• Benign