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Macrophage Cholesterol Depletion and Its Effect on the Phagocytosis of Cryptococcus neoformans
Published on: December 19, 2014
CRYPTOCOCCAL MENINGITIS IN IMMUNOCOMPETENT PATIENT
Abstract:
Cryptococcal meningitis (CM) is life threatening fungal infection of central nervous system (CNS). Although it is commonly associated with immunosuppression but rarely it can occur in immune competent patient. We report a case of 21 year old non HIV infected girl. Based on initial diagnoses of tuberculosis Bacillus meningitis (TBM), she was started on anti-tuberculosis treatment (ATT). However failure to respond to treatment prompted a quest for alternative diagnosis. A final Diagnosis of CM was confirmed on latex agglutination antigen detection on cerebrospinal fluid (CSF) analysis. The patient responded well to antifungal treatment. Initially diagnosis was missed due to common occurrence of tuberculosis infection in Pakistan and resemblance of its symptomatology and magnetic resonance imaging (MRI) findings with CNS cryptoccocal infection.
Insights
Cryptococcal meningitis (CM) can occur in immunocompetent individuals. This case highlights the importance of considering fungal infections even when tuberculosis is suspected, especially when treatment fails.
Area of Science:
- Neurology
- Infectious Diseases
- Mycology
Background:
- Cryptococcal meningitis (CM) is a severe fungal infection of the central nervous system (CNS).
- It is typically associated with immunosuppression but can rarely affect immunocompetent individuals.
- Tuberculosis meningitis (TBM) is common in certain regions and shares similar clinical presentations with CM.
Observation:
- A 21-year-old, non-HIV infected female presented with symptoms suggestive of meningitis.
- Initial diagnosis favored TBM, and she received anti-tuberculosis treatment (ATT).
- Lack of response to ATT necessitated further investigation for an alternative diagnosis.
Findings:
- Cerebrospinal fluid (CSF) analysis using latex agglutination antigen detection confirmed a diagnosis of CM.
- The patient showed a positive response to antifungal therapy.
- Diagnostic delay was attributed to the prevalence of TBM and overlapping clinical and MRI findings.
Implications:
- This case underscores the need to consider CM in immunocompetent patients presenting with meningitis symptoms, even in regions with high TBM prevalence.
- Timely and accurate diagnosis through specific antigen testing is crucial for effective treatment and improved patient outcomes.
- Rethinking differential diagnoses when initial treatments fail is essential for managing complex CNS infections.
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