cases, kidney Week 301: Case 4 April 26, 2023 pathadmin 1. Presented by Jonathan Epstein, M.D. and prepared by Shien Micchelli, M.D.A 68 year old male was noted to have a large mass surrounding the kidney.images/2_19_07_4a.jpgimages/2_19_07_4b.jpgimages/2_19_07_4c.jpgimages/2_19_07_4d.jpgimages/2_19_07_4e.jpgAngiomyolipoma involving the retroperitoneumLeiomyosarcoma involving the retroperitoneumFibromatosisDedifferentiated liposarcoma Loading...