cases, retroperitoneum Week 292: Case 3 April 26, 2023 pathadmin 1. Presented by George Netto, MD and prepared by Marc Lewin, M.D.A 45 year old man with a history of a testicular tumor removed 1 year prior to current resection of an enlarging retroperitoneal mass.images/11-27-06case3a.jpgimages/11-27-06case3b.jpgimages/11-27-06case3c.jpgimages/11-27-06case3d.jpgimages/11-27-06case3e.jpg"Mature" elements of metastatic malignant teratomaPrimitive neuroepithelial tumor (PNET), originating in metastatic teratoma"Immature" elements of metastatic malignant teratoma Loading...