primary biliary cholangitis Flashcards
define primary biliary cholangitis
- autoimmune destruction of bile ducts within liver
- leads to fibrosis, cirrhosis and live failure
what is the pathology behind primary biliary cholangitis?
- autoantibodies cause interlobular bile duct damage
- this is chronic autoimmune granulomatous inflammation
- causes obstruction of the outflow of bile aka cholestasis
- bile leaks out into blood and other liver cells
- leads to fibrosis, cirrhosis, portal hypertension and infection
what are the risk factors for primary biliary cholangitis?
-female
-40-50
-other autoimmune diseases
-smoking
-rheumatoid conditions
-family history
what is the other treatment for primary biliary cholangitis?
- vit ADEK supplements
- immunosupressants
- cholestyramine- for priritus
what is the first line of treatment for primary biliary cholangitis?
- ursodeoxycholic acid - reduces cholestasis
what are the initial symptoms for primary biliary cholangitis?
- initially asymptomatic- routine test shows increased AMA
what are the early symptoms for primary biliary cholangitis?
-pruritus
-fatigue
what are the later symptoms for primary biliary cholangitis?
- jaundice
- -hepatomegaly
- Xanthelasma- yellow in inner corner of eyes or near nose
what are the other symptoms for primary biliary cholangitis?
- abdominal pain
- pale stools
- signs of cirrhosis and LF
how is primary biliary cholangitis diagnosed?
- LFTs
- Serology
- Rule out acute Hep
- ultrasound
- Liver biopsy
in primary biliary cholangitis what would LFTs look like?
-high ALP
-high conjugated bilirubin
-high GGT
-low albumin
in primary biliary cholangitis what would serology look like?
- 90% have AMA antibodies
-35% have ANA antibodies
in primary biliary cholangitis when ruling out acute hep, what are you looking for?
- HepBsAg, HCVab
in primary biliary cholangitis why is an ultrasound done?
- to exclude extra hepatic cholestasis
in primary biliary cholangitis what are you looking for in a liver biopsy?
- portal tract infiltrate
- 40% granulomatous
- portal tract fibrosis