http://www.cancer.org/cancer/multiplemyeloma/detailedguide/multiple-myeloma-treating-stem-cell-transplant
Stem cell transplant for multiple myeloma
In a stem cell transplant, the patient gets high-dose chemotherapy (sometimes with radiation to the whole body) to kill the cells in the bone marrow (including the myeloma cells). Then the patient receives new, healthy blood-forming stem cells. When stem cell transplants were first developed, the new stem cells came from bone marrow, and so this was known as a bone marrow transplant. Now, stem cells are more often gathered from the blood (a peripheral blood stem cell transplant).
Stem cell transplant is commonly used to treat multiple myeloma. Before the transplant, drug treatment is used to reduce the number of myeloma cells in the patient’s body (see the section “Chemotherapy and other drugs for multiple myeloma”).
Stem cell transplants (SCT) are autologous and allogeneic.