Synopsis

Malignant primary liver tumors are classified according to their origins in the 4th WHO classification. They mostly consist of epithelial tumors such as hepatocellular carcinoma and intrahepatic cholangiocarcinoma, which are the first and second most common liver malignancies. Although each malignancy has unique imaging features on CT and MRI that lead to differential diagnosis, they are sometimes difficult to distinguish due to similarities in the backgrounds or due to combined tumors which have features of both malignancies. In this lecture, typical and atypical imaging features of those liver malignancies with reference to the current topics and considerations will be presented.