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Invasive pulmonary aspergillosis.

Sabina Skrgat Kristan1, Izidor Kern, Ema Music

  • 1University Clinic of Respiratory and Allergic Diseases, Golnik, Slovenia.

Respiration; International Review of Thoracic Diseases
|November 29, 2002
PubMed
Summary

Invasive pulmonary aspergillosis can occur in patients with mild immune system abnormalities, not just those severely immunocompromised. Diagnosis relies on identifying fungal invasion in lung tissue via histopathology.

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Area of Science:

  • Medical Mycology
  • Pulmonology
  • Infectious Diseases

Background:

  • Invasive pulmonary aspergillosis (IPA) typically affects severely immunocompromised individuals.
  • Chronic necrotizing forms may present with milder host defense abnormalities.
  • Acute aspergillus pneumonia is usually seen in critically ill, immunocompromised patients.

Purpose of the Study:

  • To investigate the occurrence of IPA in patients with mild immune system abnormalities.
  • To broaden the understanding of patient populations susceptible to IPA.

Main Methods:

  • Retrospective analysis of 6 patients with confirmed Aspergillus sp. invasion in lung tissue.
  • Lung tissue samples were obtained through biopsy or post-mortem examination.

Main Results:

  • Four patients had acute aspergillus pneumonia; two were severely immunocompromised, and two had mild immunosuppression (sarcoidosis, cardiomyopathy/renal insufficiency/diabetes).
  • Two patients had chronic necrotizing pulmonary aspergillosis, both with mild host defense abnormalities (tuberculosis/diabetes, inactive tuberculosis/aspergilloma).

Conclusions:

  • IPA should be considered in patients with mild immunosuppression presenting with pulmonary infiltrates unresponsive to antibiotics.
  • Histopathological confirmation of fungal invasion in lung tissue is crucial for diagnosing IPA.

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