Abstract

We describe a case of hepatoid adenocarcinoma of the stomach with liver metastasis mimicking hepatocellular carcinoma (HCC). Ultrasonography demonstrated an ill-defined heterogeneous hyperechoic mass at right lobe of the liver and high echoic thrombi that filled both portal veins. Contrast enhanced CT scan revealed an ill-defined low attenuated lesion in right lobe of the liver and left portal vein and posterior branch of right portal vein that were filled with low attenuated tumor thrombi. Diffuse and irregular wall thickening with enhancement was also visualized on the posterior wall of the stomach from cardia to angle. Endoscopic biopsy for gastric lesion and US-guided percutaneous core biopsy for hepatic mass were performed. Microscopic examination and immunohistochemical staining revealed aFP-producing hepatoid adenocarcinoma of the stomach and metastatic tumor of the liver.

• Keywords: Stomach;Neoplasms;Liver Neoplasms;Secondary;Computed tomography (CT)