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RadioGraphics, Vol 16, 1349-1362, Copyright © 1996 by Radiological Society of North America

ARTICLES

Thoracic disease in children with AIDS

MJ Marks, PJ Haney, MP McDermott, CS White and AD Vennos
Department of Diagnostic Radiology, University of Maryland Medical Center, Baltimore, USA.

Knowledge of common and uncommon thoracic pathologic conditions in children with acquired immunodeficiency syndrome (AIDS) can expedite disease management. Chest radiography, computed tomography (CT), and magnetic resonance (MR) imaging are useful in cases involving possible complications of thoracic AIDS. Lymphocytic interstitial pneumonitis (LIP) is generally seen on plain radiographs and CT scans as a diffuse, symmetric, reticulonodular or nodular pattern, occasionally associated with mediastinal or hilar adenopathy. Chronic consolidations and bronchiectasis may be observed in pediatric AIDS patients with no evidence of previous LIP. Bacterial pneumonia, a frequent initial manifestation of AIDS, appears as lobar or segmental consolidations on radiographs. Radiographic findings of Pneumocystis carinii pneumonia, the most common infection, include rapidly progressive increased air- space opacity with air bronchograms. Lymphoma often appears as a mediastinal or hilar mass, often without involvement of the lung parenchyma. Thoracic smooth muscle tumors have also been observed in children with AIDS. Multilocular thymic cysts have low attenuation on CT scans and increased signal intensity on T2-weighted MR images. Most pediatric AIDS patients with cardiac disease have cardiomegaly, often associated with pulmonary edema, at chest radiography. An esophagogram may show ulceration, plaque formation, mucosal edema, and dysmotility in patients with candidal esophagitis.


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