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

Slide 028 [100X]

This slide was taken from a peripheral blood smear of a 27 year-old female diagnosed with acute monocytic leukemia. Her white blood cell count was noted to be 8.1 X 10³/µL with a differential showing 75% monoblasts. The cells indicated by the arrow showed fine thread -like nuclear chromatin with indented nucleus and prominent multiple nucleoli. Blast cell not classified, myeloblast, and lymphoblast were all acceptable answers.

NUMBER OF RESPONSES	CELL CODE AND TYPE
433	code 01- blast cell present, not classified
44	code 04- myeloblast
22	code 05- lymphoblast

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