Cytochemical Classification-1
Myeloperoxidase stain (MPO):
Present
in all stages of neutrophils (except early myeloblasts)
Weakly
positive in monocytes
Same
as myeloperoxidase stain
Sudan Black B stain (SBB):
As-D
chloracetate:
Myeloid
cells positive
Esterases (depends on substrates used):
Monocytes
negative/weakly positive
Chloracetate
:
Neutrophils
positive
Leukemic
myeloblasts positive