Similarities between hepatic graft-versus-host disease (GVHD) and primary biliary cirrhosis (PBC) have been reported recently. To examine this association, we studied 60 patients who underwent allogeneic bone marrow transplantation (BMT) consecutively at a single medical institution.Among the 60 patients, 12 developed hepatic GVHD after BMT and 48 did not. These two groups were compared with respect to various characteristics seen in PBC, such as autoantibodies, human leukocyte antigen (HLA) status, infection and inflammatory cytokines. The two groups showed a significant difference in HLA DR status. There was also a significant difference in the febrile period and in cytokine levels between the patients with hepatic GVHD and 12 other patients who had no complications after transplantation. These findings suggest that hepatic GVHD resembles PBC and that HLA DR features of PBC may also be risk factors for the onset of hepatic GVHD.