Anemia of Chronic Disease
mild-to-moderate degree of anemia often accompanies chronic infectious, inflammatory, or neoplastic diseases. Typically, the anemia of chronic disease is normochromic and normocytic to microcytic. Bone marrow examination reveals normal erythroid maturation. Neither significant disturbance of hemoglobin synthesis nor hemolysis occurs in this type of anemia. Affected persons usually have a low serum iron concentration and a low total transferrin level (resulting in essentially normal or only slightly decreased fractional transferrin saturation). Even though storage iron is abundant, there is decreased amount of iron in erythroblasts, reflecting a defect in the transfer of reticuloendothelial iron to developing red blood cells.
Med Clin North Am 76:567, 1992