cases, extremity Week 111: Case 4 April 26, 2023 pathadmin 1. Presented by Edward McCarthy, M.D. and prepared by Anil Parwani, M.D.,Ph.DA 21 year old man had knee pain for six months. A radiograph demonstrated a well defined lytic lesion in the proximal tibia involving the epiphysis and the metaphysis.images/102102case4fig1.jpgimages/102102case4fig2.jpgimages/102102case4fig3.jpgimages/102102case4fig4.jpgimages/102102case4fig5.jpgMalignant fibrous histiocytomaNon-ossifying fibromaGiant cell tumorChondroblastoma Loading...