[The angiographic findings in focal nodular hyperplasia of the liver(author's transl)].

Four cases of FNH are described; the angiographic appearances are detailed and problems in differential diagnosis are discussed. FNH presents as a hypervascular benign space-occupying process in the liver, with a typical vascular structure and intensive prolonged and sharply demarcated parenchymal staining. It can be distinguished from malignant lesions in the liver by the absence of tumour vessels, infiltration and occlusion of vessels.