title: Thin-section CT findings in Pseudomonas aeruginosa pulmonary infection.
abstract: OBJECTIVE
  The aim of this study was to assess clinical and pulmonary thin-section CT findings in patients with acute Pseudomonas aeruginosa (PA) pulmonary infection.
  
  
  METHODS
  We retrospectively identified 44 patients with acute PA pneumonia who had undergone chest thin-section CT examinations between January 2004 and December 2010. We excluded nine patients with concurrent infections. The final study group comprised 35 patients (21 males, 14 females; age range 30-89 years, mean age 66.9 years) with PA pneumonia. The patients' clinical findings were assessed. Parenchymal abnormalities, enlarged lymph nodes and pleural effusion were evaluated on thin-section CT.
  
  
  RESULTS
  Underlying diseases included malignancy (n=13), a smoking habit (n=11) and cardiac disease (n=8). CT scans of all patients revealed abnormal findings, including ground-glass opacity (n=34), bronchial wall thickening (n=31), consolidation (n=23) and cavities (n=5). Pleural effusion was found in 15 patients.
  
  
  CONCLUSIONS
  PA pulmonary infection was observed in patients with underlying diseases such as malignancy or a smoking habit. The CT findings in patients with PA consisted mainly of ground-glass attenuation and bronchial wall thickening.
  
  
  CONCLUSIONS
  The CT findings consisted mainly of ground-glass attenuation, bronchial wall thickening and cavities. These findings in patients with an underlying disease such as malignancy or a smoking habit may be suggestive of pneumonia caused by PA infection.
authors: Department of Radiology, Oita University Faculty of Medicine, Japan. fumitook@med.oita-u.ac.jp
authors: F
authors: F
authors: Okada
authors: A
authors: A
authors: Ono
authors: Y
authors: Y
authors: Ando
authors: T
authors: T
authors: Nakayama
authors: R
authors: R
authors: Ishii
authors: H
authors: H
authors: Sato
authors: A
authors: A
authors: Kira
authors: I
authors: I
authors: Tokimatsu
authors: J
authors: J
authors: Kadota
authors: H
authors: H
authors: Mori
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017714:Community-Acquired Infections / Q000000981:diagnostic imaging; D003428:Cross Infection / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018410:Pneumonia, Bacterial / Q000000981:diagnostic imaging*; D011552:Pseudomonas Infections / Q000000981:diagnostic imaging*; D011550:Pseudomonas aeruginosa; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*