bone marrow transplant (bone MAYR-oh TRANZ-plant)
A procedure in which a patient receives healthy blood-forming cells (stem cells) to replace their own stem cells that have been destroyed by disease or by the radiation or high doses of anticancer drugs that are given as part of the procedure. The healthy stem cells may come from the bone marrow of the patient or a donor. A bone marrow transplant may be autologous (using a patient’s own stem cells that were collected from the marrow and saved before treatment), allogeneic (using stem cells donated by someone who is not an identical twin), or syngeneic (using stem cells donated by an identical twin). Also called BMT.