bone, cases Week 196: Case 3 April 26, 2023 pathadmin 1. Presented by Edward McCarthy, M.D. and prepared by Dengfeng Cao, M.D. Ph.D.A 30 year old man had pain in his shoulder. A radiograph demonstrated a surface lesion in the proximal humerus. /images/Cao_101604case3a.jpg/images/Cao_101604case3b.jpg/images/Cao_101604case3c.jpgPeriosteal chondromaSurface chondrosarcomaEnchondromaSynovial chondromatosis Loading...