Imaging in Gastroenterology

Regenerative and Dysplastic Nodules

KEY FACTS Terminology Localized proliferation of liver parenchyma within cirrhotic liver in response to liver injury May progress to become dysplastic or even malignant [hepatocellular carcinoma (HCC)] Imaging Multiphasic gadoxetate (Eovist, Primovist)-enhanced MR, plus diffusion-weighted imaging is optimal imaging tool…

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…

Hepatic Injury From Toxins

KEY FACTS Terminology Injury to liver induced by exogenous toxins, either through direct hepatotoxicity or idiosyncratic reaction You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member.…

Steatosis and Steatohepatitis

KEY FACTS Terminology Steatosis is metabolic complication of variety of toxic, ischemic, and infectious insults to liver Characterized by accumulation of increasing amounts of triglycerides within hepatocytes You’re Reading a Preview Become a Clinical Tree membership for Full access and…

Autoimmune Hepatitis

KEY FACTS Terminology Chronic hepatitis of unknown etiology characterized by hyperglobulinemia, circulating autoantibodies, & inflammatory changes on hepatic histology You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are…

Viral Hepatitis

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Hepatic Schistosomiasis

KEY FACTS Terminology Hepatic parasitic infestation by Schistosoma species a.k.a. bilharziasis, blood fluke You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Hepatic Hydatid Cyst

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