Cytochemical Stains for Differentiation
of Acute Leukemia
Hematology Review 324
STAIN AML ALL
Myeloperoxidase Pos Neg
Sudan black Pos Neg
Napthol AS-D chloroacetate esterase (specific esterase) Pos Neg
Periodic acid–Schiff (PAS) Neg or diffusely pos Pos (coarse granular or block-like)