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  • Title: Overlap syndrome between autoimmune hepatitis and primary sclerosing cholangitis in two cases.
    Author: Griga T, Tromm A, Müller KM, May B.
    Journal: Eur J Gastroenterol Hepatol; 2000 May; 12(5):559-64. PubMed ID: 10833101.
    Abstract:
    The overlap syndrome between autoimmune hepatitis and primary sclerosing cholangitis is a rare condition and only few cases have been published, partly associated with ulcerative colitis, but not with Crohn's disease. We report an autoimmune hepatitis/primary sclerosing cholangitis overlap syndrome in a female patient with Crohn's disease. In addition, a second case of overlap syndrome is reported in a man without inflammatory bowel disease. A 24-year-old woman was referred with a 10-month history of diarrhoea and biochemical changes including elevated serum levels of alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase and immunoglobulin G. Enzyme linked immunosorbent assay showed that antinuclear autoantibodies were elevated. Immunofluorescence for perinuclear-staining antineutrophil cytoplasmatic antibodies was positive. Diagnostic criteria of definite autoimmune hepatitis according to the International Autoimmune Hepatitis Group were fulfilled. Liver biopsy simultaneously showed criteria of autoimmune hepatitis and primary sclerosing cholangitis. Endoscopic retrograde cholangiography demonstrated features of primary sclerosing cholangitis. Colonoscopy and colonoscopic biopsies indicated an active Crohn's disease affecting the terminal ileum and the ascending and transverse colon. Furthermore, we report the case of a 28-year-old man with known primary sclerosing cholangitis for the previous 6 years, and who developed jaundice and a marked increase of aspartate aminotransferase, alanine aminotransferase and immunoglobulin G, leading to the diagnosis of definite autoimmune hepatitis. A review of the literature revealed only 16 cases of an autoimmune hepatitis/primary sclerosing cholangitis syndrome in patients without inflammatory bowel disease or in association with ulcerative colitis. We report two additional cases, one case showing an association with Crohn's disease.
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