Pathology of the Liver 1 - Week 6 Flashcards
What is meant by cirrhosis?
terminal fibrosis of the liver
Give some causes of acute liver failure.
viruses
alcohol
drugs
bile duct obstruction
Acute Liver Failure is usually noticed by…
Acute onset of Jaundice
Acetoaminophen Toxicity causes…
Acute necrosis and liver failure
What is meant by jaundice?
Yellowing of the skin due to bilirubin
What is meant by pre-hepatic jaundice?
Too much haem to break down
Give conditions which may cause pre-hepatic jaundice.
Anaemia, sickle cell disease
What is meant by hepatic jaundice?
Liver cells injured or dead
Give some causes of hepatic jaundice.
Acute liver failure (virus,drugs,alcohol) Alcoholic hepatitis Cirrhosis (decompensated) Bile duct loss (atresia, PBC, PSC) Pregnancy
What is meant by Post-hepatic Jaundice?
Bile cannot escape into the bowel
Give some causes of post-hepatic jaundice.
Congenital biliary atresia
Gallstones block CBDuct
Strictures of CBDuct
Tumours (Ca head of pancreas)
Why do cells of the liver become hypoxic and die?
bands of fibrosis separating regenerative nodules of hepatocytes blocks off blood supply
List causes of Liver Cirrhosis.
Drugs, alcohol, Hepatitis B/C, iron overload, gallstones, autoimmune conditions
Where are the porto-caval anastimoses?
Oesophageal varices, caput medusa, haemorrhoids
Give some causes other than cirrhosis of portal hypertension.
Sarcoidosis, portal vein thrombosis