Diagnosis and management of central nervous system histoplasmosis

L J Wheat1, C E Musial, E Jenny-Avital

  • 1MiraVista Diagnostics, Indianapolis, Indiana 46241, USA. jwheat@miravistalabs.com

Insights

Diagnosing and treating Histoplasma meningitis is challenging, especially in immunocompromised patients. This study presents two cases highlighting difficulties and proposes an approach based on clinical experience due to a lack of evidence-based guidelines.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Neurology

Background:

  • Histoplasma meningitis is a rare but serious fungal infection affecting the central nervous system.
  • Diagnosis and management are challenging, particularly in immunocompromised individuals.

Observation:

  • Two cases are presented: one in an acquired immunodeficiency syndrome patient with relapsed disseminated histoplasmosis, and another in a cardiac allograft recipient with meningitis and brain lesions.
  • The first patient achieved resolution with prolonged treatment and antiretroviral therapy.
  • The second patient showed initial response to liposomal amphotericin B but ultimately succumbed to the infection.

Findings:

  • The cases illustrate significant diagnostic and therapeutic challenges in Histoplasma meningitis.
  • There is a critical lack of prospective studies to establish evidence-based guidelines for managing central nervous system histoplasmosis.

Implications:

  • Clinical experience and expert opinion are crucial for guiding the management of Histoplasma meningitis in the absence of robust data.
  • Further research is needed to develop standardized diagnostic and treatment protocols for this severe opportunistic infection.

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