Category Radiology

Budd-Chiari Syndrome

KEY FACTS Terminology Hepatic injury due to global or segmental hepatic venous outflow or inferior vena cava (IVC) obstruction Imaging Multiphasic CT or MR [± gadoxetate (Eovist) enhancement] Characteristic findings: Nodular regenerative hyperplasia in dysmorphic liver with venous collateral and…

Portal Vein Occlusion

KEY FACTS Terminology Acute, chronic, or neoplastic occlusion of portal vein (PV) due to thrombosis, thrombophlebitis, or tumor invasion Chronic PV occlusion with numerous periportal collaterals is referred to as "cavernous transformation" Imaging Color Doppler US initially : Accurate and…

Nodular Regenerative Hyperplasia

KEY FACTS Terminology Diffuse micro- or macronodular transformation of hepatic parenchyma without fibrous septa between nodules Larger focal lesions are called multiacinar (large) regenerative nodules (LRNs) Benign lesions: No potential for malignant transformation Imaging Gadoxetate (Eovist)-enhanced, multiphasic MR is best…

Cirrhosis

KEY FACTS Terminology Chronic liver disease characterized by diffuse parenchymal injury, extensive fibrosis, and conversion of liver architecture into structurally abnormal nodules Imaging US, CT, and MR all play important role in detection of cirrhosis and surveillance for development of…