cases, extremity Week 108: Case 3 April 26, 2023 pathadmin 1. Presented by Edward McCarthy, M.D. and prepared by Lynette S. Nichols, M.D.A 30 year old man had pain in his shoulder. A radiograph demonstrated a surface lesion in the proximal humerus./images/mccimages/Mcc93002-5-a.jpg/images/mccimages/Mcc93002-5-b.jpg/images/mccimages/Mcc93002-5-c.jpg/images/mccimages/Mcc93002-5-d.jpgPeriosteal chondromaSurface chondrosarcomaEnchondromaSynovial chondromatosis Loading...