cases, retroperitoneum Week 494: Case 1 April 26, 2023 pathadmin 1. Presented by Pedram Argani, M.D. and prepared by Safia Salaria, M.B.B.S.This is a 27 year old male with a retroperitoneal mass.images/1Alex/082911case1image1.jpgimages/1Alex/082911case1image2.jpgimages/1Alex/082911case1image3.jpgimages/1Alex/082911case1image4.jpgimages/1Alex/082911case1image5.jpgLeiomyosarcomaGastrointestinal stromal tumorSchwannomaLeiomyoma Loading...