Liver Path I Flashcards
acute jaundice
<6 months
flu like sx, RUQ pain, acholic stool, choluria
pruritis, eruptive xanthomas
fulminant - encephalopathy
chronic jaundice
cirrhosis portal HTN - ascites, varices fatigue, weak, weight loss testicle atropy hepatocellular carcinoma
end stage disease
hepatic failure
hepatocellular carcinoma
unconjugated hyperbilirubinemia
hemolysis
gilbert
crigler najjar
mixed hyperbilirubinemia
hepatic or cholestatic path
increased AST and ALT
hepatic
increased alk phos and GGT
cholestatic
AST > ALT
alcoholic liver disease
AST < ALT
viral serology
liver
glycogen homeostasis
albumin and clotting factor synthesis
catabolism of estrogen, drugs, toxins
excrete bile
coelomic cavity
lining the digestive organs
-lining is mesoderm epithelium
blood to liver
portal vein 75%
hepatic artery 25%
porta hepatis
posterior fissure dividing caudate and quadrate lobes of liver
-carries portal a and v and hepatic duct
support of liver in abdomen
??
budd chiari syndrome
obstruction of hepatic vein
-multiple trunks
portal triad
portal vein
hepatic artery
bile duct
kupffer cells
macrophages
stellate cells
space of disse
also fibrosis production
lobule
with central vein extending out to portal tract
blood toward central vein
bile toward bile duct
acinus
triangle within lobule
sinusoids
vessels to central vein in acinus
zons of acinus
1 - close to portal tract - high O2
2 - middle O2
3 - low O2 - near central vein
acetaminophen
damage of zone 3
kupffer cells
in sinusouds
canals of hering
basolateral hepatocytes - bile flow
space of disse
between hepatocyte and endothelial of sinusoid
location of stellate cells
location of lymph fluid
stellate cells - contract to push lymph
dendritic cells
in liver
-APCs
monitor portal circulation
fibrosis space of disse
block lymph
-get ascites
space of mall
portal tract
-can also get fibrotic leading to ascites
cholangiocytes
lining the canal of hering
-bile transport
stem cells for regeneration of hepatocytes
small ductule cholangiocyte
inflammation and proliferation
large ductule cholangiocyte
secretin regulated
-volume/alkalinity
limiting plate
around portal tract
centrilobular
near central vein
reticulin
stain - endothelial lining space of disse - type III collagen fibers
-single cell layering
trichrome stain
type I collagen - increased in liver fibrosis
dilation if bile canaliculi
with obstruction
acute phase reactants
synthesized in liver
storage of triglycerides, Fe, Cu
liver
factor VIII
produced in endo cells in liver sinusoids
-liver transplant - cure hemophilia A
stage of irreversible damage
membrane damage
acidophil bodies
apoptosis
councilman bodies
apoptotic cells in yellow fever
periportal inflammation
portal tracts
centrilobular inflammation
involving parenchyma
liver regeneration
can occur if CT framework intact
ballooning degeneration
in liver
hepatocyte degeneration
feathery cytoplasm changes with bile stasis
fatty liver
alcohol and NASH
microvesicular steatosis
central nucleus
-small vacuoles of fat
- reye syndrome
- tetracycline toxicity
- pregnancy
macrovesicular steatosis
displaced nucleus
-methotrexate toxicity
alpha-1 antitrypsin deficiency
accumulation of proteins in cells