Fig. 1From: Complex management of a large retroperitoneal undifferentiated sarcoma encasing the abdominal aorta in a pediatric patient: a case report and reviewa Coronal imaging demonstrating retroperitoneal sarcoma containing an acquired infrarenal aortic pseudoaneurysm which is displacing intraabdominal organs and renal vasculature. b Sagittal view of intraabdominal tumor containing an infrarenal abdominal aortic pseudoaneurysm. Evidence of invasion of spinous processes of the lumbar spineBack to article page