title: [92 cases of allergic-type nasal polyp. A methodology for its etiological characterization].
abstract: The etiopathogenesis of nasal allergic polyps is poorly understood; an immunological mediated mechanism is commonly admitted. A clinic-pathological study of 92 cases of nasal polyps is reported. The occupational and or environmental background of the patients was recorded. Appropriate histochemical techniques were applied to identify pollutants within the lesions. Iron, wood, cement, cork, paper, glass, tobacco, textile fibres and chalk could be identified. The follow-up of patients at 12 years after excision of polyps revealed a decrease in recurrence whenever exposure to pollutants was discontinued. The etiology of nasal allergic polyps is probably related to the inhalation of some foreign materials reported.
authors.affiliation: Instituto de Anatomia Patológica, Faculdade de Medicina de Lisboa.
authors.forename: J C
authors.initials: JC
authors.lastname: Pimentel
mesh_terms: D004781:Environmental Exposure / Q000009:adverse effects; D006801:Humans; D009298:Nasal Polyps / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D009666:Nose / Q000473:pathology / Q000601:surgery; D012130:Respiratory Hypersensitivity / Q000150:complications* / Q000473:pathology / Q000601:surgery; D013997:Time Factors
vernacular_title: Estudo de 92 casos de polipo nasal de tipo alergico. Uma metedologia para a sua caracterização etiológica.