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    Osteochondromas in hereditary multiple exostosis have increased risk of malignant transformation as compared with solitary osteochondromas. We present a case of a 54-year-old man who presented to us with complaints of swollen mass of the left shoulder with an ulcerative lesion. Radiograph showed a sessile growth from the proximal humerus and scapula. MRI revealed a sessile osteochondroma measuring about 11×10.1×8.0 cm. The malignant nature of the disease was anticipated due to increased cap thickness and non-healing ulcer, however, biopsy showed a benign lesion without any sarcomatous change. The patient was successfully treated with extra-periosteal excision and was recurrence-free at 24 months follow-up. This case illustrates an extra-articular giant osteochondroma of the proximal humerus, with possible signs of a malignant lesion but diagnosed benign on biopsy. We conclude that a biopsy should always preclude definitive management as this can change the overall mortality and morbidity of the patient. © BMJ Publishing Group Limited 2021. No commercial re-use. See rights and permissions. Published by BMJ.


    Subodh Kumar Pathak, Jasneet Singh Chawla, Manjeet Singh, Jagandeep Singh Virk. Giant ulcerative benign osteochondroma of shoulder. BMJ case reports. 2021 Sep 13;14(9)

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    PMID: 34518177

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