56-year-old man with history of rectal cancer status post resection of left lobe hepatic metastasis, now with new lesions seen on recent CT. ABDOMEN:LIVER, BILIARY TRACT: Patient is status post partial left hepatectomy. In comparison to 6/2016, there are two new hepatic parenchymal lesions identified. A segment 4 lesion (13/17) measures 17 x 13 mm, has increased peripheral T2 signal, and enhances. In segment 6 at the site of previously seen hypoattenuating liver lesion (13/30) there is a 19 x 13 mm subcapsular T2 hyperintense area which retracts the capsule and does not enhance. No additional focal hepatic lesions are identified.The gallbladder appears normal. There is no intra or extrahepatic biliary ductal dilatation.SPLEEN: Accessory splenule noted, the spleen is otherwise unremarkable.PANCREAS: A few punctate foci of T2 hyperintensity along the pancreatic duct probably represent small sidebranch IPMNs. The pancreatic parenchyma otherwise appears normal. There is no pancreatic ductal dilatation.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Simple left renal cysts, the kidneys are otherwise unremarkable.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: The partially visualized small bowel and colon appear normal.BONES, SOFT TISSUES: Scarring in the right lower quadrant anterior abdominal soft tissues likely from prior ostomy.OTHER: Along the surgical margin (13/27) there is minimally increased, amorphous T2 and diffusion signal. There is no evidence of enhancement.
1.Segment 4 lesion suspicious for metastasis.2.Segment 6 surgical defect without evidence of enhancing tumor.3.Signal along the left lobe resection margin nonspecific but may represent postoperative inflammation/scarring.