Ulcerative colitis with adenocarcinoma of colon status post colectomy with concerning liver lesions ABDOMEN:LIVER, BILIARY TRACT: Mild hepatomegaly. There is a peripheral mildly T2 hyperintense focus in segment 6, which measures 2.1 x 1.5 cm (series 701, image 21) and demonstrates no significant enhancement, no corresponding restricted diffusion. This area was present on CT 4/13/2015 but smaller at that time, and is more prominent on CT 8/19/2015. Similar peripheral lesions demonstrating relatively decreased signal are noted on the hepatobiliary postcontrast phase. The visualized hepatic vasculature is patent. Replaced right and left hepatic arteries. Trace perihepatic ascites. SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: No significant abnormality noted.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.
Peripheral nonenhancing hepatic lesions with linear margins may reflect regions of vascular compromise, possibly in the setting of hepatic venoocclusive disease, largest/most pronounced lesion located in hepatic segment 6. 