title: [Three cases of hypersensitivity pneumonitis in citrus farmers].
abstract: We report 3 cases of occupational hypersensitivity pneumonitis in citrus farmers. They were admitted to our hospital with abnormal chest shadows with coughs, fevers and breathlessness between January and February, but their symptoms disappeared with isolation from their workplace. The diagnoses were comprehensively confirmed by their occupational histories, radiological findings, and the positive findings of environmental provocation tests. Although we cannot clearly determine the pathogenic antigen of this hypersensitivity pneumonitis, Aspergillus and Penicillium might be the causative agents, because they were detected in the patients' workplaces and in double immunodiffusion tests. In Ouchterlony's immunodiffusion test, these antigens were positive in some patients.
authors.affiliation: Department of Respiratory Medicine, Respiratory Disease Center, Seirei Mikatahara Hospital.
authors.forename: Hideki
authors.initials: H
authors.lastname: Yasui
authors.forename: Takashi
authors.initials: T
authors.lastname: Matsui
authors.forename: Koshi
authors.initials: K
authors.lastname: Yokomura
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Nakano
authors.forename: Takafumi
authors.initials: T
authors.lastname: Suda
authors.forename: Kingo
authors.initials: K
authors.lastname: Chida
mesh_terms: D000368:Aged; D001230:Aspergillus / Q000276:immunology; D002957:Citrus; D005203:Farmer's Lung / Q000276:immunology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010407:Penicillium / Q000276:immunology