Osteochondroma of the scapula: A rare case report

Osteochondroma, often referred to as exostosis, is the most common benign bone tumor characterized by a bony protuberance covered by a cap of hyaline cartilage. The presence of medullary and cortical bone with the continuity of the tumor is pathognomonic for osteochondroma and aid in establishing the diagnosis. Most osteochondromas are found on the metaphysis of long bones, with the dorsal aspect of the scapula being a rare site of occurrence for an osteochondroma. Radiographic imaging, preferably through MRI or CT, assists in the identification of benign growth; however, a definitive diagnosis requires a biopsy. Open surgical resection and arthroscopic excision are the definitive treatment modalities. We present a case of 7-year-old male child who presented to our OPD following her mother noticing a palpable, growing mass on his left upper back. There was no limitation in the range of motion. A large mass was seen on the dorsal aspect and palpated measuring around 5x5x4cm. Surgical excision of the mass followed by histologic examination confirmed osteochondroma. Upon follow-up, the patient had no pain and had a full range of left shoulder motion without discomfort or pain and no signs of recurrence.