Abstract |
Agricultural workers are at risk for developing many respiratory tract disorders. Crop production disorders include chronic bronchitis, asthma, organic dust toxicity syndrome, chemical poisoning, farmer lung, and silo-filler disease. Livestock production disorders include toxic manure poisoning (dung lung) and several zoonoses. Radiographic manifestations can be classified into three patterns: (a) normal findings, characteristic of chronic bronchitis, asthma, or organic dust toxicity syndrome; (b) acute diffuse interstitial or alveolar pattern, characteristic of farmer lung, silo-filler disease, dung lung, and chemical poisoning; and (c) chronic interstitial pattern in the upper lobes ( farmer lung) or lower lobes ( silo-filler disease, paraquat poisoning). Differential diagnosis is aided by knowledge that most of these disorders have a seasonal presentation. Zoonoses generally exhibit focal areas of consolidation in the lung: The type of splenic calcification, presence of mediastinal or hilar adenopathy, and development of bronchiectasis are additional findings useful in differentiating these rare infections.
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Authors | J W Gurney, J M Unger, C A Dorby, J K Mitby, S G Von Essen |
Journal | Radiographics : a review publication of the Radiological Society of North America, Inc
(Radiographics)
Vol. 11
Issue 4
Pg. 625-34
(Jul 1991)
ISSN: 0271-5333 [Print] United States |
PMID | 1887117
(Publication Type: Journal Article, Review)
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Topics |
- Agricultural Workers' Diseases
(diagnostic imaging)
- Animals
- Farmer's Lung
(diagnostic imaging)
- Humans
- Lung Diseases
(diagnostic imaging, etiology)
- Radiography
- Silo Filler's Disease
(diagnostic imaging)
- Zoonoses
(etiology)
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