Autoimmune thrombocytopenia following autologous hematopoietic cell transplantation: review of literature and treatment options.

Autoimmune thrombocytopenia after high-dose chemotherapy and autologous bone marrow/peripheral blood stem cell transplantation occurs infrequently and only six cases meeting the criteria have been reported in the literature. All six of these patients had either acute myelogenous leukemia (AML) or lymphoblastic lymphoma (LBL). Immune thrombocytopenia following autologous transplantation in solid tumors has not been reported. We report the first case of autoimmune thrombocytopenia after high-dose chemotherapy and peripheral blood stem cell transplantation in a patient with breast cancer. A review of the literature has been conducted and treatment options are discussed. In two patients the condition resolved with treatment and in a third patient it improved. Immune-mediated thrombocytopenia in the post-transplant period is one of the causes of a low platelet count. It should be recognized promptly and treated.