Fatal Histoplasma capsulatum mitral endocarditis in a French patient treated for rheumatoid arthritis

Area of Science:

• Mycology
• Infectious Diseases
• Cardiology

Background:

• Histoplasmosis is caused by inhaling Histoplasma capsulatum spores.
• Infection is often asymptomatic but can be severe in immunocompromised patients.
• Endocarditis is a rare but serious complication.

Observation:

• A French woman with rheumatoid arthritis developed Histoplasma endocarditis.
• She had traveled to South America two years prior to diagnosis.
• Diagnosis was confirmed via mycological, serological, and histological methods.

Findings:

• The patient received appropriate treatment for Histoplasma endocarditis.
• Despite treatment, she died of cardiac insufficiency three months later.
• This case underscores the potential severity of disseminated histoplasmosis.

Implications:

• Early diagnosis and treatment are crucial for Histoplasma endocarditis.
• Clinicians should consider histoplasmosis in patients with relevant travel history and cardiac symptoms.
• This case contributes to understanding Histoplasma endocarditis in non-endemic regions.