Скачать или смотреть Ring sideroblast : Explained in 2 minutes!!!!

Sideroblast is an atypical nucleated erythroblast with granules of iron accumulated in the mitochondria which r present in the cytoplasm, but not visible in MGG or Haematoxylin -Eosin stain.These granules are visible only only only by iron stains such as Prusian blue.They appear as bule dots in the cytoplasm….. The presence of sideroblast does not define Sideroblastic anemia. Only the finding of ring sideroblasts characterizes Sideroblastic anemia.
Now what r the types of sideroblast?
There r 3 types of sideroblast.
Type1 sideroblast are those having fewer than 5 siderotic granules in the cytoplasm.
Type 2 sideroblast have 5 or more siderotic granules, but not in a perinuclear distribution
• And Type 3 sideroblast which is also known as ring sideroblast which has 5 or more granules in the perinuclear region which encircles atleast 1/3rd of the nucleus.so, there has to be 5 or more granules in the perinuclear region and it has to encircle atleast 1/3rd of the nucleus. These r the essential criteria to call it a ring sideroblast!!!!!!!