Anemia of chronic disease represents another hypoproliferative anemia. The cytokines also cause abnormalities of iron metabolism, including increased storage iron (stained blue by Prussian Blue Dye) and decreased serum iron. These abnormalities of iron distribution are generally not felt to be a significant cause of the anemia in this disorder, but are useful as laboratory markers. The increased storage iron is reflected as increased serum ferritin; thus, increased serum ferritin in conjunction with decreased serum iron is characteristic of anemia of chronic disease.
Little artistic gems like this sometimes can make studying a bit better. This looks like a watercolor wallpaper. (via my Pathology case studies)