High-Resolution CT Findings of Severe Acute Respiratory Syndrome at Presentation and After Admission
Nestor L. Müller1,
Gaik C. Ooi2,
Pek Lan Khong2,
Lin J. Zhou2,
Kenneth W. T. Tsang3 and
Savvas Nicolaou1
1 Department of Radiology, Vancouver General Hospital, University of British
Columbia, 899 W 12th Ave., Vancouver, BC V5Z 1M9, Canada.
2 Department of Diagnostic Radiology, The University of Hong Kong, Queen Mary
Hospital, Hong Kong SAR, China.
3 Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong
Kong SAR, China.

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Fig. 1A. 42-year-old man with severe acute respiratory syndrome.
Findings of chest radiograph at presentation are normal.
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Fig. 1B. 42-year-old man with severe acute respiratory syndrome.
High-resolution CT (HRCT) scan obtained 6 hr after A shows focal
ground-glass opacities in right upper lobe.
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Fig. 1C. 42-year-old man with severe acute respiratory syndrome. Chest
radiograph obtained 16 days after A shows poorly defined increased
opacity in right upper lobe with associated superior displacement of minor
fissure, denoting volume loss.
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Fig. 1D. 42-year-old man with severe acute respiratory syndrome. HRCT
scan obtained on same day as C shows mixed pattern that includes
ground-glass opacities, bandlike areas of consolidation, and reticulation in
right upper lobe. Note cephalad displacement of minor fissure (straight
arrows) and anterior displacement of major fissure (curved
arrow), consistent with volume loss.
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Fig. 2A. 48-year-old woman with severe acute respiratory syndrome.
Chest radiograph obtained 2 days after hospital admission shows bilateral
areas of consolidation in mid and lower lung zones.
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Fig. 2B. 48-year-old woman with severe acute respiratory syndrome.
High-resolution CT scan obtained on same day as A shows consolidation
involving mainly subpleural lung regions.
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Fig. 3A. 25year-old man with severe acute respiratory syndrome.
Chest radiograph obtained 8 days after initial presentation shows asymmetric
bilateral areas of consolidation in middle and lower lung zones. Note
pneumomediastinum (arrows).
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Fig. 3B. 25year-old man with severe acute respiratory syndrome.
High-resolution CT scan obtained on same day as A shows ground-glass
opacities, thickening of interlobular septa and intralobular lines in both
lower lobes, and pneumomediastinum (arrows).
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Fig. 4A. 48-year-old man with severe acute respiratory syndrome.
High-resolution CT (HRCT) scan obtained within 12 hr of hospital admission
shows extensive bilateral ground-glass opacities in both upper lobes and mild
thickening of interlobular septa (arrows).
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Fig. 4B. 48-year-old man with severe acute respiratory syndrome. HRCT
scan obtained at same level as A 27 days after hospital admission shows
ground-glass opacities with superimposed fine reticular pattern.
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Fig. 4C. 48-year-old man with severe acute respiratory syndrome. HRCT
scan obtained at level of lower lobe bronchi shows patchy bilateral
ground-glass opacities with associated reticular pattern and mild traction
bronchiectasis (arrow).
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Fig. 5. 55-year-old man with severe acute respiratory syndrome.
High-resolution CT scan obtained 18 days after hospital admission shows
diffuse bilateral ground-glass opacities, areas of consolidation predominately
in subpleural and dependent lung regions, mild thickening of interlobular
septa, and traction bronchiectasis (straight arrow). Also note
pneumomediastinum (curved arrows) and small bilateral pleural
effusions.
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Copyright © 2004 by the American Roentgen Ray Society.