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Published on: November 29, 2019
Primary progressive multiple sclerosis: cerebrospinal fluid considerations
1Department of Medicine (Neurology), University of Ottawa, Ottawa Hospital General Campus, 501 Smith Road, Box 601, Ottawa, Ontario K1H 8L6, Canada. mfreedman@ottawahospital.on.ca
Abstract:
Diagnosing the 'primary progressive' form of multiple sclerosis (PPMS) requires assurance that other conditions that might cause a chronic inflammatory neurodegenerative central nervous system (CNS) disease have been ruled out. Both imaging and pathological studies have shown that this form of MS tends to be less inflammatory compared with either the relapsing-remitting or secondary progressive types. There are therefore many conditions that cause a slowly progressive wasting of the CNS that might be confused with MS. The new MS diagnostic scheme has made the presence of 'typical' MS abnormalities in the cerebrospinal fluid (CSF) a mandatory first criterion, but there may well be individuals that still have PPMS even in the absence of a typical MS CSF. Here we explore what the CSF can tell about an individual's disease process and outline the current state of the art in terms of CSF analysis. Used properly, the CSF can be very helpful in clarifying a diagnosis of PPMS.
Insights
Diagnosing primary progressive multiple sclerosis (PPMS) can be challenging. Cerebrospinal fluid (CSF) analysis, when used correctly, is a valuable tool for confirming PPMS diagnoses and differentiating it from other neurological conditions.
Area of Science:
- Neurology
- Neuroimmunology
- Neurodegeneration
Background:
- Primary progressive multiple sclerosis (PPMS) diagnosis requires excluding other chronic neurodegenerative CNS diseases.
- PPMS is characterized by less inflammation than other MS types, increasing diagnostic complexity.
- Many conditions mimic PPMS, necessitating precise diagnostic criteria.
Purpose of the Study:
- To explore the diagnostic utility of cerebrospinal fluid (CSF) in primary progressive multiple sclerosis (PPMS).
- To outline the current state of CSF analysis for PPMS diagnosis.
- To highlight CSF's role in differentiating PPMS from other central nervous system (CNS) disorders.
Main Methods:
- Review of current diagnostic schemes for multiple sclerosis (MS).
- Analysis of pathological and imaging studies related to PPMS.
- Exploration of cerebrospinal fluid (CSF) biomarkers and analysis techniques.
Main Results:
- New MS diagnostic criteria mandate typical MS abnormalities in CSF.
- PPMS can exist even without typical MS CSF findings.
- CSF analysis provides crucial insights into the disease process.
Conclusions:
- Cerebrospinal fluid (CSF) analysis is essential for diagnosing primary progressive multiple sclerosis (PPMS).
- Proper utilization of CSF analysis aids in clarifying PPMS diagnoses.
- CSF findings help distinguish PPMS from other chronic neurodegenerative CNS diseases.
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Increased Intracranial Pressure l: Introduction
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