WHO MDS CLASSIFICATION SUBTYPE
MDS WITH EXCESS BLASTS
(MDS-EB)
Normal
Red Blood Cells
Abnormal
Red Blood Cells
Normal
White Blood Cells
Abnormal
White Blood Cells
Normal
Platelets
Abnormal
Platelets
Blasts
MDS WITH EXCESS BLASTS (MDS-EB)
MDS-EB exhibits a low number of one or more types of blood cells in the bloodstream that also look abnormal in the bone marrow with an increased number of blast (immature) cells.
MDS-EB1: less than 5% of cells in the bloodstream are blasts. In the bone marrow, 5-9% of cells are blast cells.
MDS-EB2: 5-19% of cells in the bloodstream are blast cells and 10-19% of cells in the bone marrow are blast cells.
