Portal vein
Vena portae hepatis · Vrátnicová žíla
Veins
Looks like
Each of the two main branches (right and left) into which the portal vein divides at the entrance to the liver.
What it does
Carries nutrient-rich blood from the gut to its half of the liver.
Keeping it well
Blocking one branch on purpose (portal vein embolisation) makes the other half grow before a large liver operation.
Related conditions
- Acute liver failure
- Acute porphyria
- Alcohol withdrawal and delirium tremens
- Alcohol-related liver disease
- Alpha-1 antitrypsin deficiency
- Autoimmune hepatitis
- Bile duct cancer (cholangiocarcinoma)
- Biliary atresia
- Brucellosis
- Chronic venous insufficiency
- Cirrhosis
- Clotting disorders (thrombophilia & APS)
- Deep vein thrombosis
- Dengue & mosquito-borne fevers
- Ebola virus disease
- Echinococcosis (hydatid disease)
- Eye melanoma (uveal melanoma)
- Gilbert's syndrome
- Haemochromatosis & Wilson's disease
- Hepatic encephalopathy
- High cholesterol
- Intestinal worms & schistosomiasis
- Intrahepatic cholestasis of pregnancy
- Leishmaniasis
- Leptospirosis (Weil's disease)
- Liver abscess (pyogenic and amoebic)
- Liver cancer (hepatocellular carcinoma)
- Malaria
- Metabolic fatty liver disease (MASLD)
- Metabolic syndrome
- Myelofibrosis
- Newborn jaundice
- Phenylketonuria (PKU)
- Poisoning & overdose
- Portal vein thrombosis and Budd–Chiari syndrome
- Primary biliary cholangitis
- Primary sclerosing cholangitis
- Varicose veins
- Viral hepatitis (A, B, C, D, E)
- Yellow fever