pleocytosis

^[1]^[2]^[3]

Introduction

Presence of more cells than normal, often denoting leukocytosis. The term was originally used in reference to lymphocytosis in CSF.

↑ Stedman's Medical Dictionary 26th ed, Williams & Wilkins, Baltimore, 1995
↑ Rothaus C A Returning Traveler with Headache. NEJM Resident 360. Dec 25, 2019 https://resident360.nejm.org/clinical-pearls/a-returning-traveler-with-headache-2
↑ ^3.0 ^3.1 Schmidauer M et al. Reactive pleocytosis after repeated lumbar puncture - Implications for clinical practice. Eur J Neurol 2025 Apr; 32:e70117 PMID: https://pubmed.ncbi.nlm.nih.gov/40186414 PMCID: PMC11971533 https://onlinelibrary.wiley.com/doi/10.1111/ene.70117