Related Experiment Video
Updated: Jul 10, 2026

Flow Cytometric Analysis of Lymphocyte Infiltration in Central Nervous System during Experimental Autoimmune Encephalomyelitis
Published on: November 17, 2020
Laboratorial diagnosis of lymphocytic meningitis
Sérgio Monteiro de Almeida1, Meri Bordignon Nogueira, Sonia Mara Raboni
1Hospital de Clínicas, Federal University of Paraná, Rua Padre Camargo 280, Curitiba, PR, Brazil.
Abstract:
Meningitis is the main infectious central nervous system (CNS) syndrome. Viruses or bacteria can cause acute meningitis of infectious etiology. The term "Aseptic Meningitis" denotes a clinical syndrome with a predominance of lymphocytes in the cerebrospinal fluid (CSF), with no common bacterial agents identified in the CSF. Viral meningitis is considered the main cause of lymphocyte meningitis. There are other etiologies of an infectious nature. CSF examination is essential to establish the diagnosis and to identify the etiological agent of lymphocytic meningitis. We examined CSF characteristics and the differential diagnosis of the main types of meningitis.
Insights
Aseptic meningitis, often caused by viruses, presents with lymphocyte predominance in cerebrospinal fluid (CSF). CSF analysis is crucial for diagnosing meningitis and identifying its infectious cause.
Area of Science:
- Neurology
- Infectious Diseases
- Clinical Diagnostics
Background:
- Meningitis is a primary infectious syndrome affecting the central nervous system (CNS).
- Acute meningitis can be caused by viral or bacterial pathogens.
- Aseptic meningitis is characterized by lymphocytic pleocytosis in cerebrospinal fluid (CSF) without common bacterial identification.
Purpose of the Study:
- To examine cerebrospinal fluid (CSF) characteristics in meningitis.
- To explore the differential diagnosis of major meningitis types.
- To elucidate the etiological agents of lymphocytic meningitis.
Main Methods:
- Analysis of CSF parameters.
- Differential diagnostic evaluation of meningitis cases.
- Identification of etiological agents through CSF examination.
Main Results:
- Viral meningitis is the predominant cause of lymphocytic meningitis.
- CSF examination is pivotal for diagnosing meningitis and identifying causative agents.
- Non-viral infectious etiologies can also cause lymphocytic meningitis.
Conclusions:
- CSF analysis is essential for differentiating meningitis types and identifying infectious causes.
- Understanding CSF profiles aids in the diagnosis of viral and other infectious meningitis.
- This study highlights the importance of CSF examination in managing CNS infections.
Related Concept Videos
Viral Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis
