has part has plasma membrane part develops from eosinophilic myelocyte immature eosinophil eosinophilic metamyelocyte A eosinophil precursor in the granulocytic series, being a cell intermediate in development between a eosinophilic myelocyte and a band form eosinophil. The nucleus becomes indented where the indentation is smaller than half the distance to the farthest nuclear margin; chromatin becomes coarse and clumped; specific granules predominate while primary granules are rare. Markers are integrin alpha-M-positive, fucosyltransferase FUT4-positive, low affinity immunoglobulin gamma Fc region receptor III-positive, CD33-positive, CD24-positive and aminopeptidase N-negative. metamyelocyte acidophilic cytoplasm reniform nucleus heterochromatin azurophil granule tertiary granule integrin alpha-M alpha-(1,3)-fucosyltransferase 4 low affinity immunoglobulin gamma Fc region receptor III CD33 molecule signal transducer CD24 aminopeptidase N