89-year-old male with history of right ureteral carcinoma status post nephroureterectomy in September 2015. ABDOMEN:LIVER, BILIARY TRACT: No focal hepatic enhancing lesion. No intra or extra hepatic biliary ductal dilatation. There is small amount of perihepatic fluid.SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Status post right nephroureterectomy. Left perinephric mild T2 hyperintensity consistent with edema. There is a subcentimeter T1 hyperintense focus in the left kidney, consistent with a hemorrhagic cyst. No hydroureteronephrosis on the left.RETROPERITONEUM, LYMPH NODES: There is a T1 hypointense and T2 hyperintense collection in the aortocaval region without evidence of restricted diffusion or enhancement; this collection measures 2.8 x 3.4 cm. Findings suggestive of a postoperative lymphocele/seroma.The infrarenal aorta measures 4.5 cm (series 12, image 62), unchanged compared to the CT May 2015 examination.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.PELVIS: Susceptibility artifact from right hip prosthesis limits evaluation.PROSTATE/SEMINAL VESICLES: No significant abnormality noted.BLADDER: No significant abnormality noted.LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: There is a T1 hypointense and T2 hyperintense collection in the pelvis measuring approximately 4.3 x 4.1 cm without evidence of restricted diffusion or enhancement. Findings is consistent with postoperative lymphocele/seroma.OTHER: No significant abnormality noted.
1.Postoperative changes of right nephroureterectomy.2.Retroperitoneal and pelvic fluid collections as above most consistent with postoperative lymphocele/seroma.3.Small amount of perihepatic ascites.4.Unchanged 4.5 cm infrarenal aortic abdominal aneurysm.