A Unique Case of Recurrent Osteochondroma Enclosing Brachial Artery in a 13-Year-Old Female

INTRODUCTION: Osteochondromas (OCEs) are benign chondrogenic lesions arising on the external surface of the bone with aberrant cartilage (exostosis) from the perichondral ring that may contain a marrow cavity also. In few cases, depending on the anatomical site affected, different degrees of edema, redness, paresthesia, or paresis can take place due to simple contact or friction. Furthermore, depending on their closeness to neurovascular structures, the procedure of excision becomes crucial to avoid recurrence. We report a unique case of recurrent OCE of the proximal humerus enclosing the brachial artery which makes for an important case and procedure to ensure that no relapse occurs. CASE REPORT: We report a unique case of a 13-year-old female who had presented with a history of pain and recurrent swelling for 5 years. The swelling size was 4.4 cm × 3.7 cm × 4 cm with a previous history of swelling at the same site operated in 2018. CONCLUSION: This case report demonstrates that when presented with a case of recurrent OCE of the proximal humerus, doing proper excision of the tumor is crucial to prevent its relapse.