Chronic graft-versus-host disease (GVHD) is a well-known complication of allogeneic bone marrow transplantation (BMT)and has heterogeneous manifestations, with multi-organ involvement. Recently, polymyositis (PM) was reported to be a raremanifestation of chronic GVHD. Here, we report a 30-year-old woman who was diagnosed with PM after allogeneic BMT.
