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An instructive case of CNS histoplasmosis in an immunocompetent host

Sweeya Ramireddy1, Audrey Wanger1, Luis Ostrosky1

  • 1Division of Infectious Diseases, University of Texas Health Science Center at Houston, 6431 Fannin, MSB 2.112, Houston, Texas 77030, USA.

Medical Mycology Case Reports
|December 28, 2013
PubMed

Insights

This study presents a rare case of central nervous system (CNS) histoplasmosis in an immunocompetent individual. Treatment with antifungal medications led to significant clinical improvement, highlighting successful management of this fungal infection.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Neurology

Background:

  • Histoplasma capsulatum is an endemic dimorphic fungus causing infections in various hosts.
  • Central nervous system (CNS) histoplasmosis is a rare manifestation, typically associated with compromised immunity.
  • However, cases in immunocompetent individuals are documented, though infrequent.

Purpose of the Study:

  • To report a unique case of isolated CNS histoplasmosis in an immunocompetent patient.
  • To discuss the diagnostic and therapeutic challenges in such cases.
  • To emphasize that CNS histoplasmosis can occur in individuals without apparent immune deficits.

Main Methods:

  • Case report of an immunocompetent patient diagnosed with isolated CNS histoplasmosis.
  • Review of clinical presentation, diagnostic workup, and treatment course.
  • Antifungal therapy including Liposomal Amphotericin B, Voriconazole, and Itraconazole.

Main Results:

  • The patient, despite being immunocompetent, presented with isolated CNS histoplasmosis.
  • Successful management was achieved with a sequential antifungal regimen.
  • Significant clinical improvement was observed following treatment.

Conclusions:

  • Isolated CNS histoplasmosis can occur in immunocompetent hosts.
  • Prompt diagnosis and appropriate antifungal therapy are crucial for favorable outcomes.
  • This case underscores the importance of considering histoplasmosis even in the absence of known immunosuppression.
Keywords:
Central nervous systemHistoplasma antigenHistoplasmosisMeningitisVoriconazole

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