title: Canary fancier's lung.
abstract: A 54-year-old man presented with features consistent with extrinsic allergic alveolitis occurring after contact with his pet birds. Screening of the serum for avian precipitating antibody was negative but canary precipitins were present. Extrinsic allergic alveolitis to his pet canaries was confirmed by inhalation challenge.
mesh_terms: D000542:Alveolitis, Extrinsic Allergic / Q000209:etiology*; D000818:Animals; D001716:Bird Fancier's Lung / Q000209:etiology* / Q000276:immunology; D002171:Canaries / Q000276:immunology*; D006801:Humans; D006968:Hypersensitivity, Delayed; D008297:Male; D008875:Middle Aged; D011234:Precipitins / Q000032:analysis
chemical_list: D011234:Precipitins