IGHE and bronchiectasis: Excluding ABPA as a cause of bronchiectasis requires obtaining a total IgE level, immediate cutaneous reactivity to Aspergillus fumigatus, peripheral blood eosinophil count, and serum specific IgE antibodies to the recombinant A. fumigatus allergens rAsp f 1, 3, 4 and 6 [73, 74].