Fatal chronic relapsing thrombotic thrombocytopenic purpura following autologous bone marrow transplantation for chronic myeloid leukemia.

Thrombotic thrombocytopenic purpura (TTP) is a severe and potentially fatal syndrome increasingly reported shortly after allogeneic bone marrow transplantation. We report a 49-year-old patient who developed a recurrent and ultimately fatal form of TTP late after autotransplant for chronic myeloid leukemia.