Hepatobiliary 1 Flashcards
Councilman bodies
necrotic, shrunken, eosinophilic hepatocytes following apoptosis
Where are councilman bodies found?
liver cell necrosis
hyperbilirubinemia
unconjugated bilirubin in blood like red cell destruction or abnormal hepatocyte metabolism
kernicterus (hyperbilirubinemia)
a bilirubin induced brain dysfunction
cirrhosis
diffuse involvement of whole liver by fibrosis
cirrhosis is caused by hepatocellular injury by
chronic hep B or chronic hep C, nonalcoholic fatty liver disease
what are less common causes of cirrhosis?
autoimmune disease or iron overload like deposition of glycogen or copper
What happens to the architecture of the liver in cirrhosis?
- normal architecture is diffusely replaced by regenerated nodules of liver cells, separated by bands of fibrotic collagen
- lack usual architecture of ordered sinusoids + central vein
- micronodular vs. macronodular patterns
Is cirrhosis reversible?
irreversible and end stage of many processes
cirrhosis may lead to death from
progressive liver failure, portal hypertension, hepatocellular carcinoma
What is the most common type of liver cancer?
hepatocellular carcinoma
What is the most common intrahepatic cause of portal hypertension?
cirrhosis
etiology of cirrhosis
hemochromatosis + wilson disease
hemochromatosis
- excessive iron accumulation in liver, pancreas, heart, pituitary, joints, + others
- organ dysfunction
wilson disease
- inadequate hepatic excretion of copper
- excess copper accumulates in liver, brain, eyes
- causes cirrhosis
- kayser feischer rings
What are kayser feisher rings, seen in Wilson’s disease?
pathognomonic of cirrhosis, deposition of copper in corneal limbus, dark rings encircling the iris
What is the most common cause of chronic liver disease?
alcohol (toxic liver disease)
In toxic liver disease, what is the metabolic product that damages the liver?
aldehyde
nonalcoholic fatty liver disease is caused by
obesity, type 2 diabetes, hypertension, dyslipidemia
alcoholic liver disease; heavy drinkers develop
1 steatosis (90-100%)
2 alcoholic hepatitis (10-35%)- fever, jaundice, hepatomegaly, elevated AST, alkaline phosphatase, and ACT
3 alcoholic cirrhosis (8-20%)= portal hypertension, 10-20% develop carcinoma
alcoholic hepatitis (alcoholic liver disease)
- associated w/ extreme fatty change + sometimes cirrhosis
- results from prolonged alcoholic abuse
histopathology of alcoholic hepatitis
- swelling+ necrosis of hepatocytes
- acute inflammation
- formation of alcoholic pink hyaline (mallory bodies) in swollen hepatocytes