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KMID : 0880420230240080795
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Korean Journal of Radiology
2023 Volume.24 No. 8 p.795 ~ p.806
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Occupational Lung Diseases: Spectrum of Common Imaging Manifestations
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Alexander W. Matyga
Lydia Chelala
Jonathan H. Chung
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Abstract
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Occupational lung diseases (OLD) are a group of preventable conditions caused by noxious inhalation exposure in the workplace. Workers in various industries are at a higher risk of developing OLD. Despite regulations contributing to a decreased incidence, OLD remain among the most frequently diagnosed work-related conditions, contributing to significant morbidity and mortality. A multidisciplinary discussion (MDD) is necessary for a timely diagnosis. Imaging, particularly computed tomography, plays a central role in diagnosing OLD and excluding other inhalational lung diseases. OLD can be broadly classified into fibrotic and non-fibrotic forms. Imaging reflects variable degrees of inflammation and fibrosis involving the airways, parenchyma, and pleura. Common manifestations include classical pneumoconioses, chronic granulomatous diseases (CGD), and small and large airway diseases. Imaging is influenced by the type of inciting exposure. The findings of airway disease may be subtle or solely uncovered upon expiration. High-resolution chest CT, including expiratory-phase imaging, should be performed in all patients with suspected OLD. Radiologists should familiarize themselves with these imaging features to improve diagnostic accuracy.
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KEYWORD
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Occupational lung disease, Asbestosis, Silicosis, Coal worker′s pneumoconiosis, Chronic beryllium disease, Hypersensitivity pneumonitis, Asthma, Obliterative bronchiolitis
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