IGHE and bronchiectasis: Common factors of these various criteria include Af-specific immunoglobulin, asthma, elevated total serum IgE levels (greater than 500 IU/mL), peripheral blood eosinophilia, cutaneous hypersensitivity reaction to Af, central bronchiectasis on chest CT, presence of pulmonary opacities on chest radiograph radiography and elevated serum IgE and/or IgG to Af [24,63,65,66,74,111,112,113,114,115,116].