Magnetic resonance imaging, MRI has more advantages than ultrasound, computed tomography, CT, positron
emission tomography, PET, or any other imaging modality in diagnosing focal hepatic masses. With a combination of basic
T1 and T2 weighted sequences, diffusion weighted imaging, DWI, and hepatobiliary gadolinium contrast agents, that
is gadobenate dimeglumine (Gd-BOPTA) and gadoxetic acid (Gd-EOB), most liver lesions can be adequately diagnosed.
Benign lesions, as cyst, hemangioma, focal nodular hyperplasia, FNH or adenoma, can be distinguished from malignant
lesions. In a non-cirrhotic liver, the most common malignant lesions are metastases which may be hypovascular or hypervascular.
In the cirrhotic liver hepatocellular carcinoma, HCC, is of considerable importance. Besides, intrahepatic cholangiocarcinoma
and other less common malignancies has to be assessed. In this review, the techniques and typical MRI
features are presented as well as the new algorithm issued by American Association for the Study of the Liver Diseases