MR imaging of liver neoplasms

This exhibit illustrates the spectrum of morphologic and signal intensity features of a variety of hepatic neoplasms seen with MR imaging. The cases have been selected from our experience with 442 patients, evaluated with 0.6-T imager and a wide range of pulse sequences. Known or suspected primary and secondary liver neoplasms included 330 metastases, 14 hepatomas, three hepatic adenomas, two cases of focal nodular hyperplasia, 20 cases of hepatic cysts, 37 hemangionas and 11 miscellaneous conditions; 25 subjects were healthy. In virtually all cases correlative contrast agent-enhanced CT scans were obtained; selected ones are shown. Pathologic or historical confirmation of etiology was available in most patients, and gross anatomic correlation was available for the 18 primary liver neoplasms that were resected