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  • Title: Chronic active hepatitis associated with vitiligo, nail dystrophy, alopecia and a new variant of LKM antibodies.
    Author: Sacher M, Blümel P, Thaler H, Manns M.
    Journal: J Hepatol; 1990 May; 10(3):364-9. PubMed ID: 2195110.
    Abstract:
    In this report we describe the case of a 7-year-old boy, suffering from autoimmune-type chronic active hepatitis (AI-CAH) associated with vitiligo, nail dystrophy, alopecia areata and a variant of liver kidney microsomal (LKM) autoantibodies. This patient's antibodies are different from LKM-1 which are directed against cytochrome P450 db1. They react predominantly with perivenous hepatocytes in contrast to LKM-1 antibodies which homogeneously stain the whole liver lobule in immunofluorescence. In Western blot analysis this LKM variant reacts with a liver microsomal protein of approx. 50 kDa, but not with recombinant LKM-1 (cytochrome P450 db1) antigen. Immunosuppressive treatment led to a normalization of liver histology after 1 year and a significant improvement of vitiligo and alopecia areata. In summary, a case of autoimmune-type chronic active hepatitis is presented which is associated with a new variant of LKM antibodies reacting with a 50 kDa microsomal protein different from cytochrome P450 db1. Furthermore, this patient suffers from extrahepatic syndromes (alopecia, nail dystrophy) that have not been described previously in LKM antibody-positive chronic active hepatitis.
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