Different varieties and anatomopathological description of primary tumors of the liver
The different types of primary hepatic tumors are examined, focusing on their macroscopic and histologic features. A large variety of neoplasms can be observed, derived from the different components of the liver. Benign (adenoma, focal nodular hyperplasia) or malignant (hepatocellular carcinoma) epithelial tumors of hepatocellular origin are very common. Hemangioma is the most common mesenchymatous-derived tumor. However, the frequency of each type of tumor varies considerably in the different age and sex groups. Some special entities recently reported, such as epithelioid hemangioendothelioma or fibrolamellar carcinoma are detailed.