Reason: liver mass History: liver mass ABDOMEN:LIVER, BILIARY TRACT: There is a large heterogeneous mass arising from the right hepatic lobe, measuring approximately 15 x 11 x 13 cm (AP by ML by CC; series 3, image 57; series 3, image 22). This results in marked hepatomegaly with displacement of the central vasculature, left kidney, and pancreas, all located left of midline. The lesion is mostly isointense on T2 and postcontrast images, with T2 hyperintense septae and cystic/necrotic areas centrally which are hypoenhancing compared with the remainder of the lesion and normal liver parenchyma. The left, right, and main portal vein are patent.SPLEEN: No significant abnormality noted.PANCREAS: Displaced, limiting evaluation.ADRENAL GLANDS: The right adrenal gland is not well seen due to displacement. Left adrenal gland is unremarkable.KIDNEYS, URETERS: The right kidney is displaced, as above. No suspicious renal lesion is identified. No significant hydronephrosis or hydroureter.RETROPERITONEUM, LYMPH NODES: No significant retroperitoneal lymphadenopathy.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
Large heterogeneous right hepatic lobe lesion of unclear etiology. We favor either atypical variant of hepatocellular carcinoma or sarcoma as etiology. 