The ultrasonographic manifestations of cholangiocarcinoma are mainly reflected in the number of sizes, morphology and boundaries, echogenicity of cholangiocarcinoma, and blood flow signals. 1. Size and number: cholangiocarcinomas are often multiple, with different sizes, usually not more than 10mm, and are often unevenly distributed in the liver parenchyma. 2. Morphology and boundaries: the boundaries of cholangiocarcinoma are relatively clear, and the morphology is often round, smooth, and the envelope is not obvious. 3. Echo of the malformation tumor: the echo of cholangiocarcinoma can be medium-high echo or hypoechoic foci, and multiple scattered small cysts and scattered comet tails can be seen in the liver. The comet’s tail is mainly due to multiple reflections from dilated bile ducts of certain sizes. 4. Blood flow signals: Since cholangioid tumors are benign lesions, there are usually no obvious abnormal blood flow signals. If you find cholangiocarcinoma, you need to go to the hospital for examination and treatment in time to avoid delaying the condition. If there is any discomfort, consult a doctor in time.