Medical algorithm: Aspergillus fumigatus components in the diagnosis of allergic bronchopulmonary aspergillosis

Allergic bronchopulmonary aspergillosis (ABPA) is a lung disease involving hypersensitivity to Aspergillus fumigatus (Af) antigens caused by repeated inhalation of spores in susceptible hosts. Its identification is sometimes difficult, and delayed diagnosis, or lack of treatment, leads to worsening lung function and major complications like pulmonary fibrosis or bronchiectasis.