A survey of the laparoscopic findings in such important focal diseases of the liver as metastasis, tumours, cysts and abscesses is given. Among the granulomatous changes, sarcoidosis, lymphogranulomatosis, tuberculosis and reticulosis deserve special attention. Definitive differentiation is, as a rule, only possible after carrying out a histological examination. In numerous infectious diseases, small granulomatous changes can be observed in conjunction with a so-called reactive hepatitis. Industrial noxae (e.g. beryllium, asbestos, silicates, and others) can also induce granulomatosis.