bone, cases Week 78: Case 2 April 26, 2023 pathadmin 1. Presented by Edward McCarthy, M.D. and prepared by Jeffrey Seibel, M.D. Ph.D.A 14 year old boy had pain in his lower leg for 8 months.Giant cell tumorNon-ossifying fibromaAneurysmal bone cystChondromyxoid fibroma 1. Presented by Edward McCarthy, M.D. and prepared by Jeffrey Seibel, M.D. Ph.D.A 14 year old boy had pain in his lower leg for 8 months.