Neutrophilic granulocytes in peripheral blood smear (human)

Stain: May-Grnwald-Giemsa (MGG). The nucleus of the neutrophilic granulocytes (also called polymorphonuclear leukocyte or PMN) is segmented into three to five connected lobules. The cytoplasm displays many fine (dust-like) azurophilic granules. The majority called specific granules are filled with enzymes such as lysozyme, collagenase, and elastase. These granules do not stain strongly with either basic or acidic dyes. The remainder of the granules, called azurophilic granules, contains enzymes and microbicidal substances.