Male 59 years old Reason: 59 yo male with hx of retroperitoneal sarcoma; please evaluate for changes History: retroperitoneal sarcoma ABDOMEN:LIVER, BILIARY TRACT: No focal hepatic lesion. Status post cholecystectomy. No biliary dilatation.SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Postsurgical changes related to prior ureteral resection with ureteric reimplantation onto the bladder. Mild right hydronephrosis, stable/mildly decreased compared to prior study.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.PELVIS:PROSTATE/SEMINAL VESICLES: Enlarged prostate, unchanged.BLADDER: The bladder has been displaced superiorly by the below described mass. LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: Colonic diverticulosis without MRI evidence of diverticulitis.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: A large enhancing mass with central necrosis is again seen in the right iliac fossa. This measures 8.1 x 10.5 cm (series 19, image 52), previously 7.4 x 10.1 cm. This is consistent with provided history of retroperitoneal liposarcoma and is minimally increased compared to prior study. The mass invades the pelvic sidewall laterally, abuts the psoas muscle posteriorly and invades the right common iliac and external iliac vessels. It continues to exert mass effect on the bladder. On its medial aspect this is closely related to the sigmoid colon without invasion. Status post ligation of the right internal iliac artery and vein. No satellite lesions are identified.
1.Right iliac fossa mass compatible with provided history of liposarcoma. This demonstrates right pelvic sidewall and vascular invasion and displaces the bladder superiorly. It demonstrates slight interval increase in size compared to prior study.2.Mild right hydronephrosis, slightly decreased from prior study.