[Generalized microsporidiosis caused by Encephalitozoon sp. in a pediatric patient with Bruton's disease]

O Vásquez Tsuji1, R Rodríguez Herrera, T Campos Rivera

  • 1Servicio Clínico de Parasitología y Micología, Instituto Nacional de Pediatría, Avenida Insurgentes Sur. No 3.700-C, Colonia, Insurgentes Cuicuilco, Código Postal 04530, Delegación Coyoacán, México, Distrito Federal.

Insights

This case study highlights a pediatric patient with Bruton's disease and microsporidiosis. Successful albendazole treatment resolved severe neurological and physical symptoms, demonstrating effective therapeutic outcomes.

Area of Science:

  • Pediatric Neurology
  • Infectious Diseases
  • Immunology

Background:

  • Bruton's disease (X-linked agammaglobulinemia) predisposes individuals to recurrent infections.
  • Microsporidiosis is an opportunistic infection caused by microsporidia, particularly in immunocompromised hosts.

Observation:

  • A four-year-old boy with Bruton's disease presented with fever, seizures, mutism, dysphagia, tremors, and quadriparesis.
  • Diagnostic tests revealed generalized microsporidiosis, confirmed by immunologic analysis and microscopy in various bodily samples.

Findings:

  • The patient received a 72-day course of albendazole.
  • Post-treatment, the patient showed significant recovery, regaining motor and speech functions, and normal swallowing ability.
  • Follow-up laboratory tests for microsporidiosis were negative.

Implications:

  • This case underscores the importance of considering opportunistic infections like microsporidiosis in pediatric patients with primary immunodeficiencies.
  • Prompt diagnosis and treatment with albendazole can lead to substantial clinical improvement and recovery.
  • Highlights the diagnostic utility of immunofluorescence and specific stains in identifying microsporidian infections.

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