Coccidioidomycosis pneumonia in a nonendemic area associated with infliximab

Mahmood Dweik1, Bruce A Baethge, Alexander G Duarte

  • 1Division of Allergy, Pulmonary, Immunology, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA.

Insights

Tumor necrosis factor (TNF) inhibitors can increase infection risk in rheumatoid arthritis patients. A case highlights coccidioidomycosis pneumonia from imported dust exposure in a non-endemic area.

Area of Science:

  • Rheumatology
  • Infectious Diseases
  • Pulmonary Medicine

Background:

  • Tumor necrosis factor (TNF) inhibitors are effective rheumatoid arthritis treatments.
  • TNF inhibitors increase the risk of serious infectious complications.
  • Coccidioidomycosis pneumonia is typically acquired in endemic regions.

Observation:

  • A rheumatoid arthritis patient on infliximab developed coccidioidomycosis pneumonia and ARDS.
  • The patient resided in a non-endemic region near the Texas-Louisiana border.
  • Infection was suspected to stem from imported pulverized rock dust from Arizona.

Findings:

  • This case demonstrates coccidioidomycosis pneumonia in a non-endemic area.
  • Fomite dust exposure is a potential transmission route for TNF inhibitor patients.
  • Successful treatment with antifungal therapy was achieved.

Implications:

  • Physicians should consider coccidioidomycosis in TNF inhibitor patients with pneumonia, regardless of geographic location.
  • Awareness of non-traditional exposure routes like fomite dust is crucial.
  • This highlights the importance of environmental and occupational exposures in opportunistic infections.

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