Bone marrow is the soft, spongy tissue found inside bones.
It is where about 95 percent of the body's blood cells are developed and stored. The blood cells that produce other blood cells are stem cells. Stem cells are used in bone marrow transplantation. Healthy marrow is then transplanted or transfused into the patient's blood stream where it migrates to the bone cavities to begin producing normal blood cells. The Greenebaum Cancer Center's Blood and Marrow Transplant Program allows patients to receive aggressive and high-dose therapies as well as promising new therapies.