PURPOSE: To describe the magnetic resonance imaging spectrum of appearances of liver @entity3 from @entity1124 . MATERIALS AND METHODS: We retrospectively evaluated the MRI exams performed between July 1996 and August 2001 in all @entity1 who had liver @entity3 from @entity788 and histopathologic diagnosis from either the primary @entity788 , liver @entity3 , or both. Sixteen @entity1 were included in the study. All MR studies were performed at 1.5 T with a standard protocol including T1- and T2-weighted images and serial post- @entity2287 spoiled gradient echo (SGE) images. Location, size, number, signal characteristics on T1- and T2-weighted images, and pattern of enhancement on serial @entity2287 -enhanced SGE images were assessed. RESULTS: The diameter of @entity3 ranged from a few millimetres to 4 cm, and 12 @entity1 (75%) had only lesions of 1.5 cm or less. Capsular-based liver @entity3 were found in 13 @entity1 (81%) and three @entity1 had only capsular-based lesions with a diameter under 1.5 cm. @entity75 were found in six @entity1 (38%) and @entity75 in 10 @entity1 (62%). Perilesional enhancement was present in 10 @entity1 (62%), with six @entity1 (38%) having ring perilesional enhancement and eight @entity1 (50%) having wedge-shaped perilesional enhancement. CONCLUSION: On MR imaging, hepatic @entity3 from @entity788 show a range of enhancement patterns. Hypervascular @entity3 are not rare. Capsular based distribution, small diameter, and perilesional enhancement are common features. This retrospective study describes the MR imaging spectrum of appearances of liver @entity3 from @entity788 in @entity1 with histopathologic confirmation of the diagnosis.

Liver XXXX from @entity788 : MR imaging characteristics.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity788 :: ('MESH:D010190', 'Disease') :: ['pancreatic tumor', 'pancreatic adenocarcinoma'] @entity1124 :: ('MESH:D021441', 'Disease') :: ['pancreatic ductal adenocarcinoma'] @entity75 :: ('MESH:D001927', 'Disease') :: ['Hypervascular lesions', 'hypovascular lesions'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastases'] @entity2287 :: ('MESH:D005682', 'Chemical') :: ['gadolinium']
@entity3 :: (MESH:D009362,Disease) :: ['metastases']
