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

Slide 137 [100X]        Click here for a higher resolution image.

Almost all laboratories correctly identified this cell as an eosinophil (code: 13). The characteristic large, reddish-orange granules are prominent in eosinophils, thanks to their affinity for the eosin or acidophilic dye used in conventional Romanowsky stains. The arrowed cell has abundant cytoplasm and a bilobed nucleus with compact and dark chromatin. Educational slide E04 and this image are both from an 89-year-old male with peripheral hemophagocytosis.

 

Number of Responses Percent of Laboratories Cell Code and Type

440

99.5

Code 13: Eosinophil

1

0.2

Code 20: Seg. neut w/ toxic granulation

1

0.2

Code 22: Pelger-Huët

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