Diagnostic Approach to the Patient With Diffuse Lung Disease

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Presentation transcript:

Diagnostic Approach to the Patient With Diffuse Lung Disease Jay H. Ryu, MD, Eric J. Olson, MD, David E. Midthun, MD, Stephen J. Swensen, MD  Mayo Clinic Proceedings  Volume 77, Issue 11, Pages 1221-1227 (November 2002) DOI: 10.4065/77.11.1221 Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 1 Chest radiograph of a patient with bird fancier's disease shows diffuse infiltrative lung disease characterized by numerous poorly circumscribed nodular opacities. Mayo Clinic Proceedings 2002 77, 1221-1227DOI: (10.4065/77.11.1221) Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 2 Computed tomographic scan of the chest shows characteristic findings of chronic eosinophilic pneumonia. Note multifocal regions of consolidation, which in this case have a typical distribution in the periphery of the lungs. Cryptogenic organizing pneumonia has a similar radiological appearance. Mayo Clinic Proceedings 2002 77, 1221-1227DOI: (10.4065/77.11.1221) Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 3 High-resolution computed tomographic scan of usual interstitial pneumonia. These findings are characteristic and include a honeycomb pattern with reticulation. A peripheral and basilar distribution is typical. Note regions of traction bronchiectasis. Reprinted from Ryu et al.26 Mayo Clinic Proceedings 2002 77, 1221-1227DOI: (10.4065/77.11.1221) Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 4 High-resolution computed tomographic scan of a patient with hypersensitivity pneumonitis. Note diffuse, poorly circumscribed nodular pattern with ground-glass attenuation. These findings are characteristic of subacute changes of hypersensitivity pneumonitis. Mayo Clinic Proceedings 2002 77, 1221-1227DOI: (10.4065/77.11.1221) Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 5 High-resolution computed tomographic scan of a patient with lymphangioleiomyomatosis. A diffuse pattern of well-circumscribed cysts is present throughout the lung. In lymphangioleiomyomatosis, the cysts have a diffuse homogeneous appearance throughout the lungs. The lung area between the cysts has a normal appearance on computed tomography. Mayo Clinic Proceedings 2002 77, 1221-1227DOI: (10.4065/77.11.1221) Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 6 High-resolution computed tomographic scan of patient with desquamative interstitial pneumonia. Note mosaic pattern of ground-glass opacity. Several lobules are spared from this infiltration process. Note that in regions of ground-glass opacity, the vessels are visible, which is how ground-glass opacity is defined. Mayo Clinic Proceedings 2002 77, 1221-1227DOI: (10.4065/77.11.1221) Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions

Figure 7 High-resolution computed tomographic scan shows a septal pattern due to lymphangitic carcinomatosis. Note thickening of interlobular septa, which defines secondary pulmonary lobules. Lymphangitic carcinomatosis tends to be moremultifo cal as opposed to cardiogenic edema, which tends to be more diffuse and with bilateral pleural effusions. The absence of marked nodularity involving the interlobular septa is uncharacteristic of lymphangitic carcinomatosis. Mayo Clinic Proceedings 2002 77, 1221-1227DOI: (10.4065/77.11.1221) Copyright © 2002 Mayo Foundation for Medical Education and Research Terms and Conditions