<prompt> Non specific esterase in present in-Megakaryocytic leukaemiaLymphocytic leukaemiaErythroleukaemiaAML  <response>: Ans. is d i.e., AML Acute Myelogenous leukemia AML o AML is a cancer of myeloid line of WBCs, characterized by the rapid proliferation of abnormal cells which accumulate in the bone marrow and interfere with the production of normal blood cells. o AML is the most common acute leukemia affecting adults. o The diagnosis of AML is based on finding that myeloid blasts make up more than 20 of the cells in the marrow. o Myeloblasts are mveloperoxidase peroxidase positive. o Auer rods Represent abnormal azurophilic granule are also present in myeloblasts and their presence is taken to be definite evedence of myeloid defferentiation. o In some AMLs, blast cells exhibit differentiation of other myeloid stem cell line other than myeloblast, e.g., i Monoblast Lack auer rods, peroxidase negative, but nonspecific esterase positive. Megakaryocytic differentiation Erythroblast 