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Nocardia empyema in an immunocompromised host: A case report

Carlos Ignacio Rodríguez Reyna1, Erick Torres Luna1, Ajay Sheshadri2

  • 1Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Av. Ignacio Morones Prieto 3000, Sertoma, 64710, Monterrey, N.L, Mexico.

Respiratory Medicine Case Reports
|April 24, 2025
PubMed

Insights

Nocardia infections, rare in empyema, pose diagnostic challenges in immunocompromised patients. This case highlights difficulties in identifying Nocardia pneumonia and empyema alongside fungal pneumonia.

Area of Science:

  • Infectious Diseases
  • Hematology
  • Pulmonology

Background:

  • Patients with myeloproliferative disorders, like primary myelofibrosis, face heightened risks of opportunistic infections.
  • Nocardia infections can disseminate widely, frequently affecting the central nervous system but potentially any organ.

Observation:

  • A rare case of Nocardia empyema is presented in a patient post-hematopoietic cell transplant.
  • Concurrent fungal pneumonia complicated the diagnosis, initially masking the Nocardia infection.

Findings:

  • Nocardia empyema is an uncommon manifestation, particularly in immunocompromised individuals.
  • Diagnostic challenges arise from atypical presentations and limitations in current diagnostic tools.
  • The case illustrates Hickam's dictum, where multiple simultaneous diagnoses can occur.

Implications:

  • Early and accurate diagnosis of Nocardia infections is crucial, especially in transplant recipients.
  • Improved diagnostic strategies are needed to overcome limitations in identifying Nocardia.
  • Recognizing atypical presentations of empyema in immunocompromised hosts is vital for timely treatment.

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