New York State Department of Health - Wadsworth Center - Cytohematology Proficiency Testing

Slide 072 [100X]

This slide was taken from the peripheral blood of a 40 -year -old female. The cell indicated by the arrow is a normal monocyte. "The three most characteristic features of the monocyte, and the most helpful in diagnosis, are the dull gray-blue color of the cytoplasm, the blunt pseudopods, and the brain-like convolutions of the nucleus." The Morphology of Human Blood Cells, L.W. Diggs, MD; Dorothy Sturm; and Ann Bell, MS Fifth edition. Pg.12 .

NUMBER OF RESPONSES	% OF RESPONSES	CELL CODE AND TYPE
431	90.2%	code: 12 Monocyte
17	3.6%	code: 7 Metamyelocyte
7	1.5%	code: 23 Lymphoma/Sézary cell
5	1.0%	code: 11 Atypical lymphocyte
4	0.8%	code: 22 Pelger-Huët
3	0.6%	code: 5 Promyelocyte
3	0.6%	code: 8 Band neutrophil
2	0.4%	code: 4 Monoblast
2	0.4%	code: 13 Eosinophil
1	0.2%	code: 6 Myelocyte
1	0.2%	code: 9 Segmented neutrophil
1	0.2%	code: 17 Smudge/basket cell
1	0.2%	code: 23 Toxic granulation

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