What are the MR imaging features of mass-forming cholangiocarcinoma?

The MR imaging features of mass-forming cholangiocarcinoma are similar to its CT features (,30,,33,,44). The mass shows an irregular margin with high signal intensity at T2-weighted imaging and with low signal intensity at T1-weighted imaging.

What is cholangiocarcinoma of the biliary tree?

Cholangiocarcinoma is a malignant tumor arising from cholangiocytes in the biliary tree. It tends to have a poor prognosis and high morbidity. It is the second most common primary hepatic tumor, with intrahepatic cholangiocarcinomas (ICCs) accounting for 10-20% of primary liver tumors. Article:

Is the central scar a reliable marker in cholangiocarcinoma?

Some investigators have reported that the central scar displayed on MR images in cholangiocarcinoma can be a reliable marker, allowing cholangiocarcinoma to be distinguished from metastatic liver tumors [ 7, 8, 9] because central scars are not typically observed in the latter [ 16 ].

What is the differential diagnosis for cholangiocarcinoma?

Differential diagnosis is different according to whether the tumour is intra or extrahepatic and depending on the growth pattern. For an intrahepatic mass-forming cholangiocarcinoma consider: liver metastases central necrosis (high T2 signal) is more common. hepatocellular carcinoma (HCC) tumour thrombus more common.

How are cholangiocarcinomas classified?

Cholangiocarcinomas refers to cancers that arise from biliary epithelium. These tumors can occur anywhere along the biliary tree. These are divided into extrahepatic, intrahepatic, perihilar, and distal lesions. This practical classification is based on anatomy and surgical management.

What is intrahepatic cholangiocarcinoma (IC)?

Intrahepatic cholangiocarcinoma is the second most common primary hepatic tumor. Various risk factors have been reported for intrahepatic cholangiocarcinoma, and the radiologic and pathologic findings of this disease entity may differ depending on the underlying risk factors.

What is cholangiocarcinoma (bile duct cancer)?

Cholangiocarcinomas ( bile duct cancers) are malignant epithelial tumors arising from the biliary tree, excluding the gallbladder or ampulla of Vater. Cholangiocarcinoma is the second most common primary hepatobiliary malignancy after hepatocellular carcinoma (HCC). They tend to have a poor prognosis and high morbidity.