60 year-old male with history of prostate cancer status post prostatectomy, now with back and lower extremity pain. Evaluate for lymphocele or other process. CHEST:LUNG BASES: No significant abnormality noted.ABDOMEN:LIVER, BILIARY TRACT: There are multiple subcentimeter hypoattenuating lesions in the left liver lobe, which are presumably benign but too small to characterize.A hypoattenuating lesion seen in liver segment 7 measures 1.8 cm by 1.8 cm (image 31, series 3). This lesion is incompletely characterized on this limited study. SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Clean left nephrectomy siteRETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No evidence of abscess, bowel, obstruction or ileus.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: Mild ascitesPELVIS:PROSTATE, SEMINAL VESICLES: The prostate has been surgically removed with surgical clips seen in the resection site.BLADDER: No significant abnormality noted.LYMPH NODES: No pelvic lymphadenopathy noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: There is a minimal amount of pelvic fluid.There is a right hypoattenuating retroperitoneal focus in the external iliac region measuring 1.1 cm x 1.9 cm best seen on image 114, series 3.
1.Status post radical prostatectomy with mild ascites and postoperative changes as described above2.Right retroperitoneal focus may represent a small lymphocele; however, an enlarged lymph node cannot be ruled out. There should be special attention to this area on future scans.3.Multiple, bilobar liver lesions best considered indeterminate and incompletely characterized, although these lesions would be unusual for metastatic prostate cancer. A dedicated liver scan could further characterize these lesions.