An immature cell of the bone marrow that is the precursor of a myelocyte.

一种急性白血病特征是骨髓内的淋巴细胞增多。

This is the appearance of normal bone marrow smear at high magnification. Note the presence of an eosinophilic myelocyte, a basophilic myelocyte, and a plasma cell.

高镜下的正常骨髓涂片,可见一个嗜酸性中幼粒细胞，一个嗜碱性中幼粒细胞和一个浆细胞。