Abstract
Purpose. The aim of this study was to review the chest computed tomography (CT) findings in children with swine-origin influenza (H1N1) virus (S-OIV) infection. Materials and methods. The radiologists retrospectively reviewed chest CT findings in 12 children with S-OIV infection and recorded the following findings: groundglass opacities (GGO), consolidation, nodules, reticular opacities, peribronchial cuffing, and air trapping; distribution; affected lobes. The presence of pleural effusions, pneumomediastinum, pulmonary interstitial emphysema (PIE), and lymphadenopathy was also recorded. Results. Chest CT revealed GGO (67%), consolidation (67%), nodules (25%), peribronchial cuffi ng (42%), and air trapping (33%). The distribution of the lesions was random (75%), peribronchial (17%), or subpleural (8%). The lobes affected were the lower (92%), upper (58%), and middle (17%) lobes. There were associated pleural effusions (42%), PIE (42%), pneumomediastinum (33%), and lymphadenopathy (75%). Among five patients with air-leak complications, three had a history of allergies and three required the intensive care unit. Conclusion. Chest CT findings in children with S-OIV infection were peribronchial thickening and a mixture of airspace consolidation and GGO with random distribution and lower lobe predominance. Pleural effusion, lymphadenopathy, PIE, and pneumomediastinum may be associated findings.
Original language | English |
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Pages (from-to) | 707-711 |
Number of pages | 5 |
Journal | Japanese Journal of Radiology |
Volume | 29 |
Issue number | 10 |
DOIs | |
State | Published - Dec 2011 |
Bibliographical note
Funding Information:Most of the numerical calculations have been performed on the Nec/SX5 of the National Computer Center of CNRS (IDRIS), with the support of the SPI Department of CNRS, under Project No. 0336.
Keywords
- Chest CT
- H1N1
- Pneumomediastinum
- Swine-origin influenza A