hemosiderosis /hē′mōsid′ərō″sis, hem′-/ [Gk, haima + sideros, iron, osis, condition] , an increased deposition of iron in a variety of tissues, usually in the form of hemosiderin and usually without tissue damage. It is often associated with diseases involving chronic, extensive destruction of red blood cells, such as thalassemia major. Compare hemochromatosis, sideroblastic anemia. See also ferritin, iron transport, siderosis, thalassemia, transferrin.
