cases, extremity Week 113: Case 1 April 26, 2023 pathadmin 1. Presented by Edward McCarthy, M.D. and prepared by Greg Seidel, M.D.A 14 year old boy had pain in his forearm for two weeks. A radiograph showed a poorly defined radiolytic lesion in the mid shaft of the radius with a periosteal reaction./images/Lyn's/nov4-mc-1.a.jpg/images/Lyn's/nov4-mc-1.b.jpg/images/Lyn's/nov4-mc-1.c.jpg/images/Lyn's/nov4-mc-1.d.jpg/images/Lyn's/nov4-mc-1.e.jpgEwing's sarcomaEosinophilic granuloma (Langerhans' cell histiocytosis)Osteomyelitis Loading...