Classification of Portal Hypertension
| Prehepatic |
| Portal vein thrombosis |
| Splenic vein thrombosis |
| Massive splenomegaly (Banti's syndrome) |
| Hepatic |
| Presinusoidal |
| Schistosomiasis |
| Congenital hepatic fibrosis |
| Sinusoidal |
| Cirrhosis—many causes |
| Alcoholic hepatitis |
| Postsinusoidal |
| Hepatic sinusoidal obstruction (venoocclusive syndrome) |
| Posthepatic |
| Budd-Chiari syndrome |
| Inferior vena caval webs |
| Cardiac causes |
| Restrictive cardiomyopathy |
| Constrictive pericarditis |
| Severe congestive heart failure |