Fig. 1From: Synchronous double cancers of primary hepatocellular carcinoma and cholangiolocellular carcinoma: a case reportAbdominal ultrasonography (US) showed the two tumors. a A well-defined 23-mm hypoechoic mass that was heterogeneous on the inside was observed in the 6th segment of the liver (arrows). b A slightly ill-defined 10-mm hypoechoic mass that was homogeneous on the inside was observed in the 7th segment of the liver (arrows)Back to article page