Anatom3DHepatovenous segment ix
Segmentum hepatis IX · Jaterní segment IX
Digestive system
Looks like
A rarely used subdivision: the right part of the caudate region next to the inferior vena cava, described by Couinaud as segment IX.
What it does
Liver tissue drained directly into the vena cava, like the rest of the caudate lobe.
Keeping it well
Not used in most clinical reports, which count it as part of segment I; relevant only to specialised liver surgery.
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
- Cirrhosis
- 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
- Viral hepatitis (A, B, C, D, E)
- Yellow fever