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Bronchiolitis obliterans:
postinfectious, CVD (esp RA), toxic fumes, post transplant (BMT), lymphoma, lung CA, idiopathic
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Mosaic attenuation (air trapping):
BO, sarcoid, hypersensitivity pneumonitis, chronic PE, asthma, emphysema
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Small lung:
hypogenetic lung syndrome, PA agenesis, chronic atelectasis, BO
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Small hilum:
PA compression/invasion/hypoplasia, lobar atelectasis/resection, emphysema
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Enlarged cardiac silhouette:
cardiomegaly, pericardial effusion
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Blunted CPA:
pleural effusion, pleural thickening
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SVC syndrome:
bronchogenic CA (#1), lymphoma, mets, long term IV devices, fibrosing mediastinitis
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