Cellular origin and diagnostic significance of high-fluorescent cells in cerebrospinal fluid detected by the XE-5000 hematology analyzer

Autor: J.-B. Gonzalez, Klemens Ruprecht, Mathias Zimmermann, Stefan Prokop, Carolin Otto
Rok vydání: 2013
Předmět:
Zdroj: International Journal of Laboratory Hematology. 35:580-588
ISSN: 1751-5521
Popis: Summary Introduction The Sysmex XE-5000 is a blood and body fluid analyzer able to differentiate cells into polymorphonuclear, mononuclear, and high-fluorescent cells (HFC). The identity of HFC in cerebrospinal fluid (CSF) has been uncertain; however, compatible with their high nucleic acid content, HFC could represent intrathecal tumor cells. Here, we studied the cellular origin and the diagnostic significance of HFC in CSF. Methods Results of CSF examinations with the XE-5000 were analyzed in 65 CSF samples with and 126 CSF samples without tumor cells, as defined by manual microscopy of CSF cytospin preparations. Results The XE-5000 detected HFC in 51 of 65 tumor cell–positive and in 33 of 126 tumor cell–negative CSF samples (sensitivity: 78.5%, specificity: 73.8%, positive likelihood ratio: 3.0, negative likelihood ratio: 0.29). The percentages of HFC and tumor cells in CSF samples correlated (r² = 0.41, P
Databáze: OpenAIRE
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