occurs in hematopoietic system AE bone marrow disorder AE a hematopoietic system AE that has an outcome of disease in the bone marrow, the spongy tissue inside of some bones that contain stem cells that can develop into red blood cells, white blood cells or platelets WEB: http://www.nlm.nih.gov/medlineplus/bonemarrowdiseases.html 10061729 DJ, SS, YH bone marrow