Vnitr Lek 1997, 43(3):154-156

[Tumors of the liver and biliary system].

A Chlumská: II. patologickoanatomický ústav 1. LF UK, Praha.

The classification of tumours is based on the traditional classification into epithelial, mesenchymal and less common types. The most frequent epithelial tumour is hepatocellular carcinoma, which usually develops in a cirrhotically altered liver. Its differentiation from regenerative and hyperplastic liver changes by needle biopsy may prove very difficult. Malignant mesenchymal liver tumours are rare. Because of a more frequent incidence and uncertain biological behaviour epitheloid haemangioendotheliomas are more important. Newly described units include also inflammatory pseudotumours and primary MALT lymphoma of the liver.