文档介绍：儿童贫血全英文
Disease of hematopoietic system
infantile anemia
〔1〕nutritional iron deficiency anemia(IDA)
〔2〕nutritional megaloblastic anemia
Primary/immunity thrombocytopenia Purpura(ITP)
Leukemia
haematogenesis of children
hematopoiesis --produced blood
extramedullary
 before birth and postnatal
 
mesoblast hepatic medullary
3-15w 6w-6ms 3ms
Embryo stage
Mesoblastic haematogenesis:3ws begin,8ws weaken, 12-15ws disappears。
liver:8ws begin,6months gradually weaken ,erythroblast、granular cell and megakaryocyte.
Embryo stage
3、spleen:12ws begin erythrocyte, granule ,
lymphocyte
4、Haematogenesis of an
gland:8ws nodes:11ws
Embryo stage
5、myelo-haematopoiesis:6mons
Haematogenesis function emphasis,make various kinds of blood cells,unique an after birth.
Haematopoiesis postnatal
1、marrow:
2、extramedullary:when requirement of haemopoiesis increase,liver、spleen、lymphadenectasis,hepatomegaly and splenomegaly, in circulating blood
immature erythrocytes and granulocytes .
Physiological haemolysis
Normal newborns have higher hemoglobin(HB) and hematocrit levels and a shortened survival period of the fetal RBCs contributes to the development of physiologic anemia.