cases, retroperitoneum Week 138: Case 6 April 26, 2023 pathadmin 1. Presented by Ralph Hruban, M.D. and prepared by Anil Parwani, M.D.,Ph.DThis asymptomatic elderly man was found to have a 25cm retroperitoneal mass./images/6203case6fig1.jpg/images/6203case6fig2.jpg/images/6203case6fig3.jpgLipomaAtypical lipomaWell-differentiated liposarcomaLipoblastoma Loading...