Magnetic resonance in the liver. II differential diagnostic of primitive focal lesion

Magnetic resonance (MR) has become a mandatory diagnostic technique for space occupying processes of the liver since it allows the identification of benign processes (cysts, hemangioma focal nodular hyperplasia, regeneration nodules and adenomatous hyperplasia) and malignant processes (hepatoma, intrahepatic cholangiocarcinoma, metastasis, etc.) which, if the situation of the patient so permits, require inmediate surgery. If we add to this the fact that its sensitivity in the detection of focal lesions is greater than that of any other diagnostic technique (including livers deformed by cirrhosis or partial or diffuse fatty infiltrations), it is probably the ideal procedure for the radiological study of the liver. The aim of this work is to record the events that produce primitive expansive processes of the liver and the major points on which the differential diagnosis between them is based. (Author)