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Licensed Unlicensed Requires Authentication Published by De Gruyter January 16, 2023

Spurious low WBC count in the WNR channel of Sysmex XN-9000 hematology analyzer in a case with leukocyte aggregation

  • Qingkai Dai , Luyun Peng and Rui Shi ORCID logo EMAIL logo

Corresponding author: Rui Shi, Department of Laboratory Medicine, Sichuan University West China Second University Hospital, Chengdu, P.R. China; and Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, South Renmin Road Section 3 #20, Chengdu, 610041, P.R. China, E-mail:

  1. Research funding: None declared.

  2. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: Authors state no conflict of interest.

  4. Informed consent: Informed consent was obtained from all individuals included in this study.

  5. Ethical approval: The local Institutional Review Board deemed the study exempt from review.


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Received: 2022-11-23
Accepted: 2023-01-04
Published Online: 2023-01-16
Published in Print: 2023-06-27

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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