Reason: liver lesion noted on CT scan please characterize History: liver lesion on CT scan ABDOMEN:LIVER, BILIARY TRACT: In the right lobe of the liver, there is a 8.6 x 5.9 x 9.1 cm lobulated mass (series 1202 image 477, series 701 image 20). This mass remonstrates relatively homogeneous T1 isointense, T2 mildly hyperintense signal and diffusely decreased signal on out of phase sequences. There is avid homogeneous arterial phase enhancement, some contrast retention seen on subsequent delayed imaging. There is mass effect on the vessels with adjacent perfusion abnormality in the right lobe of the liver. The remainder of the liver demonstrates questionably mild signal loss on out of phase imaging, otherwise, normal morphology and size. No intrahepatic or intrahepatic biliary ductal dilatation.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: Small nonenlarged left paraaortic lymph nodes. BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: Fluid within the subcutaneous fat of the right and posterior abdominal walls likely related to recent surgery.OTHER: No significant abnormality noted.
1.Large 9 cm mass within the right lobe of the liver with signal characteristics that are most consistent with a hepatic adenoma given the patient's age, gender and absence of cirrhotic liver background, specifically the HNF-1 alpha subtype.2.Questionable mild diffuse hepatic steatosis.