69-year-old male with history of cholangiocarcinoma status post chemotherapy. Evaluate for treatment response. ABDOMEN:LIVER, BILIARY TRACT: There is redemonstration of a lobulated segment 7 mass which has increased T2 signal and restricted diffusion. The mass has peripheral arterial enhancement with gradual fill in delayed images compatible with a cholangiocarcinoma. This measures 4.9 x 4.5 cm, previously 4.9 x 4.1 cm. Again similar to prior there is inferior extension of the tumor into segment 5.Additional small focus of arterial enhancement previously noted in segment 6 is not identified. Scattered punctate foci of increased T2 signal without enhancement compatible with small cysts.Also similar to prior, the right hepatic vein and the posterior segment of the right portal vein are poorly visualized and likely thrombosed. The remaining hepatic veins, portal vein branches, and hepatic arteries are patent.No intrahepatic or extrahepatic biliary ductal dilatation.SPLEEN: No significant abnormality noted.PANCREAS: The pancreas is mildly atrophic but maintains normal signal. The pancreatic duct is nondilated.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: No significant abnormality noted.RETROPERITONEUM, LYMPH NODES: No lymphadenopathy in the upper abdomen.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: Unchanged enhancement and increased T2 signal adjacent to L3 vertebral body inferior endplate irregularity is presumed degenerative in etiology.OTHER: No significant abnormality noted.
1.No significant interval change in size of the patient's segment 7 mass. No specific evidence of disease elsewhere in the upper abdomen.