Primary sclerosing cholangitis (PSC) is a cholestatic liver disease causing continued destruction of the bile ducts, cirrhosis, and end-stage liver disease.
Predominantly affects young and middle-aged men, often with underlying inflammatory bowel disease.
Patients may be asymptomatic at diagnosis but develop symptoms of pruritus and jaundice.
Diagnosis involves laboratory tests and cholangiography.
No effective medical therapy is available.
Liver transplantation is the only treatment option for patients with advanced disease.
Liver failure and cholangiocarcinoma are the leading causes of death.
Primary sclerosing cholangitis (PSC) is a chronic progressive cholestatic liver disease, characterised by inflammation and fibrosis of the intrahepatic and/or extrahepatic bile ducts, resulting in diffuse, multi-focal stricture formation. It is often associated with inflammatory bowel disease. Complications include dominant biliary strictures (focal areas of tight narrowing of the extrahepatic biliary tree that develops in 40% to 50% of patients as a result of progressive structuring), cholangitis, cholangiocarcinoma, and end-stage liver disease (due to chronic progressive biliary fibrosis).
History and exam
Key diagnostic factors
- male sex
- history of inflammatory bowel disease
Other diagnostic factors
- age in 40s or 50s
- abdominal pain
- weight loss
- male sex
- inflammatory bowel disease (IBD)
- genetic predisposition
1st investigations to order
- serum alkaline phosphatase
- serum gamma-GT
- serum aminotransferases (aspartate aminotransferase, alanine aminotransferase)
- serum total bilirubin
- serum albumin
- prothrombin time
- atypical antineutrophil cytoplasmic auto-antibody (ANCA)
- antimitochondrial antibody
- abdominal ultrasound
- magnetic resonance cholangiopancreatography (MRCP)
- endoscopic retrograde cholangiopancreatography (ERCP)
Investigations to consider
- serum immunoglobulins
- serum IgG4
- hepatic copper concentration
- urine copper concentration
- anti-nuclear antibody
- anti-smooth muscle antibody
- abdominal CT scan
- liver biopsy
- bone mineral density scan
end-stage liver disease
- Secondary sclerosing cholangitis
- Immunoglobulin G4 cholangitis
- Autoimmune hepatitis
- British Society of Gastroenterology and UK-PSC guidelines for the diagnosis and management of primary sclerosing cholangitis
- ACG clinical guideline: primary sclerosing cholangitis
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