We report a case of multiple hereditary exostosis in a 33-year old patient with clinical symptoms of pain and impression of a growing mass of the left shoulder alerting potential risk of malignant transformation of an osteochondroma. Imaging studies illustrated perilesional bursitis surrounding an osteochondroma of the proximal humerus. M alignant transformation was excluded with MRI. Fragments of the osteochondroma were dislocated in the inflammatory synovial bursa illustrating a case of secondary synovial osteochondromatosis.
De Groote, J., Geerts, B., Mermuys, K., & Verstraete, K. (2015). Osteochondroma of the proximal humerus with frictional bursitis and secondary synovial osteochondromatosis. JBR-BTR, 98(1), 45–47. https://doi.org/10.5334/jbr-btr.754