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Thin-Section CT 12 Months After the Diagnosis of Severe Acute Respiratory Syndrome in Pediatric Patients

Winnie C. W. Chu1, Albert M. Li2, Alex W. H. Ng1, Hung-kwan So2, Wynnie W. M. Lam1, Kitty L. Lo3, Man-chiu Au Yeung4, Yat-sun Yau5, Wa-keung Chiu6, Chi-wai Leung7, Pak-cheung Ng2, Kam-lun Hon2, Kit-wah Mo8, Tai-fai Fok2 and Anil T. Ahuja1

1 Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Ngan Shing St., Shatin, Hong Kong SAR, China.
2 Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.
3 Department of Diagnostic Radiology, United Christian Hospital, Hong Kong SAR, China.
4 Department of Diagnostic Radiology, Princess Margaret Hospital, Hong Kong SAR, China.
5 Department of Paediatrics, Queen Elizabeth Hospital, Hong Kong SAR, China.
6 Department of Paediatrics, United Christian Hospital, Hong Kong SAR, China.
7 Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong SAR, China.
8 Department of Paediatrics, Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China.


Figure 1
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  		Fig. 1A —14-year-old girl with severe acute respiratory syndrome. Transverse thin-section CT scan obtained 6 months after diagnosis shows subtle area of ground-glass opacification (arrowheads) is present at junction of posterior segment of right upper lobe and apical segment of right lower lobe.

 

Figure 2
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  		Fig. 1B —14-year-old girl with severe acute respiratory syndrome. Transverse thin-section CT scan obtained 12 months after diagnosis shows ground-glass opacification is resolved but smaller area of reticular pattern (arrows) is present at posterior segment of right upper lobe.

 

Figure 3
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  		Fig. 2 —15-year-old girl who required ventilatory support during acute illness of severe acute respiratory syndrome. Transverse thin-section CT scan obtained 6 months after diagnosis shows patchy areas of residual ground-glass opacification (arrowheads) in left lower lobe.

 

Figure 4
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  		Fig. 3 —11-year-old boy who had bilateral lower lobe consolidation during acute illness of severe acute respiratory syndrome. Transverse expiratory thin-section CT scan shows small subpleural area of air trapping (arrow) is present in left lung base.

 

Figure 5
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  		Fig. 4 —Transverse thin-section CT image in 8-year-old girl who had unifocal right upper lobe consolidation during acute illness of severe acute respiratory syndrome. Small parenchymal scar (arrow) is present at previous area of consolidation and remains unchanged between 6 and 12 months after diagnosis.

 

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