History of melanoma. ABDOMEN:LIVER, BILIARY TRACT: Normal hepatic morphology and signal intensity. 1.8 x 1.6 cm lesion in the peripheral aspect of segment VII (series 10/39) demonstrates intermediate T2-weighted signal hyperintensity and restricted diffusion. The lesion demonstrates peripheral rim enhancement, with mild internal enhancement and central necrosis. There is surrounding perfusion abnormality on arterial phase imaging which becomes isointense to liver parenchyma on portal venous and delayed imaging.No additional liver lesions. No biliary ductal dilatation. SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Bilateral simple appearing cysts.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
1.8 cm peripheral segment VII lesion is most suspicious for metastatic disease given the patient's history. It is mildly increased in size compared to the 2/23/2016 CT accounting for technical differences.