Non specific esterase is positive in all the categories of AML except -
Ans. is 'd' i.e., M6 o FAB classification divides AML into eight types M 0 to M7. o This scheme takes into account : ? i) The degree of maturation (MO to M3) ii) The lineage of leukemic blast (M4 to M7). Class Blast cells o Myeloperoxidase negative Mo minimally differentiatedAML o Auer rods negative o Express myeloid lineage antigen o 3 % blasts myeloperoxidase positive M AML without differentiation o Auer rods positive o Full range of myeloid maturation MZ AML with maturation o Myeloperoxidase positive o Auer rods positive
M3
M4
M5
M6