title: Findings of chest radiograph and spiral computed tomography in Swyer-James syndrome.
abstract: OBJECTIVE
  To evaluate the value of X-ray and spiral computed tomography (SCT) in the diagnosis of Swyer-James syndrome (SJS).
  
  
  METHODS
  A total of 28 patients, 12 males and 16 females, were studied retrospectively. Ages ranged from 11 to 57 years, the mean age was 32 years. All patients underwent inspiratory chest X-ray films, 5 with expiratory chest films and 1 with bronchogram. Furthermore, inspiratory and expiratory SCT scans were performed. The SCT findings were analyzed and compared with X-ray films.
  
  
  RESULTS
  SCT demonstrated 56 lobes with hyperlucency and diminished vascularity. The size of 51 lobes were smaller and 5 were normal. X-ray films showed that hyperlucency was only in 29 lobes, in which 19 lobes were small-sized and the other 10 lobes normal. There were 56 lobes with air-trapping on expiratory SCT scans, but only 5 lobes with air-trapping on expiratory X-ray films. Bronchogram in 1 case demonstrated bronchiectasis and bronchiolitis obliterans. SCT showed 24 patients with bronchiectasis, 9 patients with tuberculosis, 10 patients with bronchiolitis, and 2 with segmental collapse.
  
  
  CONCLUSIONS
  SCT scan is superior to chest radiography in the diagnosis and differential diagnosis of SJS.
authors.affiliation: Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan 430022. heshuishi@hotmail.com
authors.forename: He-shui
authors.initials: HS
authors.lastname: Shi
authors.forename: Fan
authors.initials: F
authors.lastname: Yang
authors.forename: Ping
authors.initials: P
authors.lastname: Han
authors.forename: Jin-long
authors.initials: JL
authors.lastname: Zheng
authors.forename: Gan-sheng
authors.initials: GS
authors.lastname: Feng
authors.forename: Yong-hua
authors.initials: YH
authors.lastname: Liu
authors.forename: Zhi-liang
authors.initials: ZL
authors.lastname: Tian
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
mesh_terms: D000293:Adolescent; D000328:Adult; D001987:Bronchiectasis / Q000150:complications / Q000000981:diagnostic imaging; D001988:Bronchiolitis / Q000150:complications / Q000000981:diagnostic imaging; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D019568:Lung, Hyperlucent / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D013902:Radiography, Thoracic; D012189:Retrospective Studies; D036542:Tomography, Spiral Computed / Q000379:methods*; D014397:Tuberculosis, Pulmonary / Q000150:complications / Q000000981:diagnostic imaging