<prompt> A round cell having fine nuclear chromatin, prominent nucleoli and fine azurophilic granule. The cell is:MyeloblastLymphoblastMonoblastNone  <response>: The myeloblast precursor of the granulocytes varies considerably in size 10-18 μm in diameter, having a large round to oval nucleus nearly filling the cell, has fine nuclear chromatin and contains 2-5 well-defined pale nucleoli. The thin rim of cytoplasm is deeply basophilic and devoid of granules.The myeloblasts of acute myeloid leukemia may, however, show the presence of rod-like cytoplasmic inclusions called Auers rods which represent abnormal derivatives of primary azurophilic granules. 