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

Slide 022 [50X]

This slide was taken from a peripheral blood smear made from a 42 year old female who was asymptomatic. Her white blood cell count was noted to be 152.0 X 10³/µL. The diagnosis was chronic myelogenous leukemia (CML). The cell indicated by the arrow is a basophil which contains large dark granules. A segmented neutrophil, a band neutrophil and a metamyelocyte are also present. A clinical chemistry profile was unremarkable except for a lactose dehydrogenase (LDH) of 840 U/L. Normal for the laboratory submitting this case was 118-242 U/L.

NUMBER OF RESPONSES	CELL CODE AND TYPE
501	code 51- basophil

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