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[Hypersensitivity pneumonitis caused by Mucor species in a cork worker]

Ana Villar1, Xavier Muñoz, Maria Jesus Cruz

  • 1Servei de Pneumologia, Hospital Vall d'Hebron, Departamento de Medicina, Universitat Autònoma de Barcelona, Barcelona, España.

Archivos De Bronconeumologia
|April 21, 2009
PubMed

Insights

This study details a rare case of suberosis, a lung disease caused by mold exposure. The patient presented with bronchial obstruction due to Mucor species, an unusual cause of hypersensitivity pneumonitis.

Area of Science:

  • Pulmonary Medicine
  • Immunology
  • Mycology

Background:

  • Suberosis is a form of hypersensitivity pneumonitis typically linked to cork and common mold exposure.
  • Hypersensitivity pneumonitis (HP) can manifest in various ways, often affecting lung parenchyma.

Observation:

  • A patient presented with symptoms and lung function tests indicative of bronchial obstruction.
  • The patient's presentation was atypical for hypersensitivity pneumonitis, with no observable abnormalities on imaging.
  • Diagnosis was confirmed through bronchoalveolar lavage and transbronchial biopsy.

Findings:

  • Mucor species was identified as the causative agent of suberosis in this patient.
  • This represents a rare instance of Mucor species inducing hypersensitivity pneumonitis.
  • A bronchial challenge test specifically identified Mucor species as the trigger.

Implications:

  • Highlights Mucor species as a potential, albeit rare, cause of hypersensitivity pneumonitis.
  • Emphasizes the importance of considering atypical presentations, such as bronchial obstruction, in diagnosing HP.
  • Suggests the utility of bronchial challenge tests in identifying specific mold triggers for HP.

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