cases, retroperitoneum Week 46: Case 5 April 26, 2023 pathadmin 1. Presented by Pedram Argani, M.D. and prepared by Bahram R. Oliai, M.D.55-year-old male with an abdominal mass./images/01-23580a.jpg/images/01-23580b.jpg/images/01-23580c.jpg/images/01-23580d.jpg/images/01-23580e.jpgGastrointestinal stromal tumorSchwannnomaSolitary fibrous tumorMalignant solitary fibrous tumor Loading...