Etiology of portal hypertension
| Presinusoidal causes Idiopathic noncirrhotic portal hypertension Biliary diseases (primary biliary cirrhosis, primary sclerosing cholangitis) Neoplastic and nonneoplastic occlusion of the portal vein Schistosomiasis Polycystic disease Arteriovenous fistulas Congenital hepatic fibrosis |
| Sinusoidal causes Drug-induced Alcoholic liver damage Nonalcoholic steatohepatitis Viral hepatitis Amyloid Infiltrative diseases Visceral leishmaniasis Gaucher disease Acute fatty liver of pregnancy |
| Postsinusoidal causes Budd-Chiari syndrome Veno-occlusive disease Hypervitaminosis A Primary vascular malignancies Epithelioid hemangioendothelioma and angiosarcoma |