Liver tumors

Liver tumors are divided into benign and malignant. Among malignant tumors in turn distinguish between primary and secondary, or metastatic. Frequency liver tumors (primary and secondary) occupy the fifth place after tumors of the uterus, stomach, mammary gland and intestine. Among tumours of various organs liver tumor-1.5-2%.
With respect to the primary cellular elements liver tumors can develop in the epithelial cells of the liver: hepatocellular adenoma benignum, cystadenoma, hepatocellular carcinoma - hepatoma. The source of their formation can be epithelium bile ducts - carcinoma cholangiocellulare-cholangioma, rare liver tumors arise from those and other cell components: the so-called mixed tumor - holangiogepatit.
Liver tumors can consist of endothelium of blood vessels, lymphatic vessels endothelium, of the components of the connective tissue. Finally, in the liver meet heterotopic tumors. Major guide of pathological anatomy Henke-Lubarsch (1936), in the Chapter on liver tumors, Herxheimer reaction leads to the following classification of tumors of the liver adenoma, cancer, cystadenoma, primary tumors of the liver from the rudiments of the adrenal glands, sarcoma, endothelioma, carcino-sarcoma, cavernous angioma.
Not all well-known pathologists types of tumors have value for surgical clinic - or because they occur only rarely (fibroma, myoma), or because they are very small and do not have the characteristic clinical symptoms (hemangioma, adenoma).