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Published on: November 5, 2019
Chronic meningitis
1Davee Department of Neurology, Feinberg School of Medicine, Northwestern University, 710 North Lake Shore Drive, Abbott Hall 1121, Chicago, IL 60611, USA. bac106@northwestern.edu
Abstract:
Chronic meningitis is a syndrome commonly defined by the presence of continuously persistent meningeal inflammation for at least 4 weeks. Presenting neurologic features are often nonspecific, and the list of differential diagnoses is broad. Despite the development of modern molecular diagnostic methods, establishing a specific cause may challenge the acumen of the treating neurologist with clues to the diagnosis residing outside the nervous system and requiring focused investigation. This review discusses selected etiologies illustrating issues in diagnosis and etiologic categories to be considered in the evaluation of this challenging syndrome.
Insights
Chronic meningitis, persistent inflammation of the meninges lasting over 4 weeks, presents nonspecific symptoms. Diagnosis requires broad differential considerations and focused investigation beyond the nervous system.
Area of Science:
- Neurology
- Infectious Diseases
- Clinical Medicine
Background:
- Chronic meningitis is defined by meningeal inflammation lasting at least 4 weeks.
- Nonspecific neurologic features complicate diagnosis, necessitating a broad differential.
- Establishing a specific etiology can be challenging despite advanced diagnostics.
Purpose of the Study:
- To review selected etiologies of chronic meningitis.
- To illustrate diagnostic challenges and considerations.
- To guide the evaluation of this complex neurologic syndrome.
Main Methods:
- Literature review of chronic meningitis etiologies.
- Discussion of diagnostic issues and clues.
- Categorization of etiologic factors.
Main Results:
- Selected etiologies of chronic meningitis are presented.
- Diagnostic difficulties and the importance of non-neurologic clues are highlighted.
- A framework for evaluating potential causes is discussed.
Conclusions:
- Chronic meningitis evaluation requires a systematic approach.
- Considering etiologies beyond the central nervous system is crucial.
- Focused investigation is key to identifying the cause of persistent meningeal inflammation.
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