Primary sclerosing cholangitis: Difference between revisions

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== Background ==
==Background==
*Autoimmune Dz typically seen in young men  
*Autoimmune disease typically seen in young men  
*Progressive inflammation and fibrosis of intra/extra hepatic bile ducts  
*Progressive inflammation and fibrosis of intra/extra hepatic bile ducts  
*Most (80%) cases are associated with inflammatory bowel dz, typically ulcerative colitis, 10% of pts with ulcerative colitis have PSC  
*Most (80%) cases are associated with [[inflammatory bowel disease]], typically [[ulcerative colitis]], 10% of patients with ulcerative colitis have PSC  
*Increased risk of colon CA in pts with Ulcerative colitis and PSC (more than UC alone) Increased risk of cholangiocarcinoma  
*Increased risk of colon cancer in patients with Ulcerative colitis and PSC (more than UC alone) Increased risk of cholangiocarcinoma  
*Prevalence is 1 to 6 per 100,000 in the U.S  
*Prevalence is 1 to 6 per 100,000 in the U.S


== Clinical Features ==
==Clinical Features==
*Generally asymptomatic but can present with fatigue, abd pain, jaundice, cholangitis, puritis, weight loss, or fever  
*Generally asymptomatic but can present with fatigue, [[abdominal pain]], [[jaundice]], [[cholangitis]], [[pruritus]], weight loss, or [[fever]]
*Mean age at presentation: 30-40 
*Mean age at presentation: 30-40


==Differential Diagnosis==
==Differential Diagnosis==


==Diagnosis==
==Evaluation==
*Alkaline phosphatase is usually elevated with mild elevations in aminotransferases  
*[[LFTs]]
*Bilirubin is typically normal, except when common hepatic duct or common bile duct is involved in late stages of disease
**Alkaline phosphatase is usually elevated with mild elevations in aminotransferases  
**Bilirubin is typically normal, except when common hepatic duct or common bile duct is involved in late stages of disease
*Perinuclear antineutrophil cytoplasmic antibody (pANCA) positive in 2/3rds of cases
*Perinuclear antineutrophil cytoplasmic antibody (pANCA) positive in 2/3rds of cases
*Cholangiography  
*Cholangiography  
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*Liver biopsy typically shows pericholangitis and periductual fibrosis but is often not diagnostic in early disease
*Liver biopsy typically shows pericholangitis and periductual fibrosis but is often not diagnostic in early disease


== Treatment  ==
==Management==
*High dose Ursodeoxycholic acid (UDCA), 25-30mg/kg/day, may improve liver chemistries but does not slow dz progression and may actually hasten development of portal HTN
*High dose Ursodeoxycholic acid (UDCA), 25-30mg/kg/day
**May improve liver chemistries but does not slow disease progression and may actually hasten development of portal hypertension
*Periodic dilation of strictures via ERCP or percutaneous route  
*Periodic dilation of strictures via ERCP or percutaneous route  
*Liver Transplant should be offered to those with advanced liver dz or repeated bouts of cholangitis (Dz can recur after transplantation)  
*Liver Transplant should be offered to those with advanced liver disease or repeated bouts of cholangitis (disease can recur after transplantation)


== Disposition ==
==Disposition==
*Annual Screening for colon cancer in patients with concomitant [[ulcerative colitis]]
*Annual Screening for colon cancer in patients with concomitant [[ulcerative colitis]]


== See Also ==
==See Also==


==References==
==References==

Revision as of 23:38, 29 September 2019

Background

  • Autoimmune disease typically seen in young men
  • Progressive inflammation and fibrosis of intra/extra hepatic bile ducts
  • Most (80%) cases are associated with inflammatory bowel disease, typically ulcerative colitis, 10% of patients with ulcerative colitis have PSC
  • Increased risk of colon cancer in patients with Ulcerative colitis and PSC (more than UC alone) Increased risk of cholangiocarcinoma
  • Prevalence is 1 to 6 per 100,000 in the U.S

Clinical Features

Differential Diagnosis

Evaluation

  • LFTs
    • Alkaline phosphatase is usually elevated with mild elevations in aminotransferases
    • Bilirubin is typically normal, except when common hepatic duct or common bile duct is involved in late stages of disease
  • Perinuclear antineutrophil cytoplasmic antibody (pANCA) positive in 2/3rds of cases
  • Cholangiography
  • Diagnosis made by ERCP or MRCP, which demonstrates strictures or beading of the intrahepatic or extrahepatic bile ducts
  • Liver biopsy typically shows pericholangitis and periductual fibrosis but is often not diagnostic in early disease

Management

  • High dose Ursodeoxycholic acid (UDCA), 25-30mg/kg/day
    • May improve liver chemistries but does not slow disease progression and may actually hasten development of portal hypertension
  • Periodic dilation of strictures via ERCP or percutaneous route
  • Liver Transplant should be offered to those with advanced liver disease or repeated bouts of cholangitis (disease can recur after transplantation)

Disposition

See Also

References

  • Current Clinical Medicine, 2nd edition by Cleveland Clinic