This Mayo Clinic video highlights the experiences of one leukemia survivor who underwent an autologous stem cell transplant, which means the cells used in transplant were her own. For those with aplastic anemia this is not an option, instead they must undergo and allogeneic transplant—-bone marrow(where stem cells that  give rise to blood cells are produced) is collected from another person. Those suffering from AA cannot undergo an autologous transplant because their bone  marrow has failed—its producing nothing so there is nothing to transplant. The marrow of those with leukemia, as the video states, has malfunctioned, rather than stopped working. If their bone marrow is still producing some normal stem cells, one treatment option is to pluck away those normal cells through  aphresis (briefly explained in the above video) and use them for transplant.

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