What is the role of allergic bronchopulmonary aspergillosis (ABPA) in the etiology of bronchiectasis?

Updated: Sep 15, 2020
  • Author: Ethan E Emmons, MD; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Answer

Bronchiectasis is believed to be secondary to airway plugging by viscid secretions containing hyphae of Aspergillus species. The resulting bronchiectasis is thin-walled and affects the central and medium-sized airways.

CT scanning of the chest demonstrates central airway bronchiectasis, differentiating this condition from other causes of bronchiectasis. Other features of ABPA include eosinophilia, elevated immunoglobulin E (IgE) levels, and dramatic responses to therapeutic corticosteroids.


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