Plasmablast ( immature blood cells ) reported to have 36% sensivity and 100% specificity compared to other neurological diseases.
https://www.sciencedirect.com/science/a ... rsWb5UjNzQ
Summary
Multiparametric flow cytometry (FC) of CSF allows one to easily estimate the percentage of lymphocyte subpopulations in CSF. We hypothesized that an increased ratio of B-lineage cells in CSF of MS patients, as assessed with FC, could be useful for diagnostics. We analyzed CSF of 137 patients (70 MS, 24 infectious/autoimmune neurologic disorders (INDs), and 43 non-infectious/autoimmune neurologic disorders (NINDs)), and showed that CSF plasmablasts of >0.1% had a sensitivity of 40% for MS and specificity of 92% when comparing MS and IND, while plasmablasts of >0.25% had sensitivity of 36%, and 100% specificity.
plasmablast: 100% specificity
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