cases, retroperitoneum Week 312: Case 3 April 26, 2023 pathadmin 1. Presented by Pedram Argani, M.D. and prepared by Wang (Steve) Cheung, M.D., Ph.D.An 8 year old male with a retroperitoneal mass.images/3886a.jpgimages/3886b.jpgimages/3886c.jpgimages/3886ef.jpgimages/3886g2.jpgAnaplastic rhabdomyosarcomaMalignant lymphomaPrimitive neuroectodermal tumorAnaplastic wilms tumor Loading...