Absence of hemosiderin from the bone marrow is sometimes encountered in patients who are not iron deficient. Two cases of autoimmune hemolytic anemia are described in which there was little or no hemosiderin in the marrow but large amounts in the spleen, which had been the major site of accelerated RBC destruction.
(Arch Intern Med 1982;142:287-288)
Engel JP, Schein OD, Conley CL. Bone Marrow Hemosiderin Does Not Always Reflect Body Iron Stores. Arch Intern Med. 1982;142(2):287-288. doi:10.1001/archinte.1982.00340150087016