Interest of IgE Directed Against Recombinant Antigens of Aspergillus Fumigatus in the Diagnosis of Allergic Bronchopulmonary Aspergillosis (ABPA)

Inclusion Criteria: * Adult patient (aged 18 years and older) being treated at Rouen University Hospital for chronic obstructive pulmonary disease and suspected of having ABPA * Laboratory tests performed or prescribed prior to inclusion. * Chest CT scan performed prior to inclusion. * Pulmonary Function Test performed or prescribed prior to inclusion. * Individual affiliated with a social security scheme * Individual who has read and understood the information sheet and does not object to participating in the study Exclusion Criteria: * Patients not affiliated with Social Security * Minors (\< 18 years old) * Persons under court protection, adult guardianship, or curatorship. * Patients with another primary chronic pulmonary condition (asthma without COPD, cystic fibrosis, post-tuberculous fibrocavitary disease). * Patients with eosinophilic granulomatosis with polyangiitis. * Patients with chronic pulmonary aspergillosis. * Patients with invasive aspergillosis. * Patients with hyper-IgE syndrome * Patients with progressive parasitic disease. * Patients receiving Omalizumab, Benralizumab, Mepolizumab, or Dupilumab, or whose treatment has been discontinued for less than 5.5 years. * Patients receiving long-term oral corticosteroid therapy, or whose long-term treatment has been discontinued for less than 28 days. • Patients on long-term antifungal treatment, or whose long-term treatment was stopped less than 28 days ago.