Figure 1. Computed tomography (CT) images of two cases showing adherence of retroperitoneal sarcomas to the right kidney and duodenum/pancreas requiring combined resection. a. Sagittal section showing tumor (*) attached to the inferior pole of the kidney and duodenum (Patient #4). b. Axial image depicting the large size of the tumor, with surrounding inflammatory change due to an episode of pancreatitis (Patient #4). c. Coronal section showing tumor located adjacent to hilum of the right kidney abutting the portal vein and duodenum. An incidental abdominal aortic aneurysm is demonstrated (Patient #5). d. Axial view more clearly showing attachment of sarcoma to duodenum anteriorly (Patient #5).