Mayo Clinic specialists use several types of tests to diagnose primary sclerosing cholangitis and identify its stage and severity, including:
- Blood tests. To assess your liver function.
- Magnetic resonance cholangiopancreatography (MRCP). A noninvasive test that images your liver, pancreas and bile ducts.
- Cholangiography. An X-ray test that takes images of your bile ducts after dye is injected, through either an endoscope or a needle.
- Liver biopsy. Examination of a sample of tissue taken from your liver.
Read more about the diagnosis of primary sclerosing cholangitis on MayoClinic.com.