title: Comparison of high-resolution computed tomography findings between Pseudomonas aeruginosa pneumonia and Cytomegalovirus pneumonia.
abstract: OBJECTIVE
  To compare pulmonary high-resolution CT (HRCT) findings in patients with Pseudomonas aeruginosa pneumonia to HRCT findings in patients with Cytomegalovirus (CMV) pneumonia.
  
  
  METHODS
  We studied 124 patients (77 men, 47 women; age range, 20-89 years; mean age, 65.4 years) with P. aeruginosa pneumonia and 44 patients (22 men, 22 women; age range, 36-86 years; mean age, 63.2 years) with CMV pneumonia.
  
  
  RESULTS
  CT findings of consolidation (p < 0.005), bronchial wall thickening (p < 0.001), cavity (p < 0.05), and pleural effusion (p < 0.001) were significantly more frequent in patients with P. aeruginosa pneumonia than in those with CMV pneumonia. Centrilobular nodules, a crazy-paving appearance, and nodules were significantly more frequent in patients with CMV pneumonia than in those with P. aeruginosa pneumonia (all p < 0.001).
  
  
  CONCLUSIONS
  Pulmonary HRCT findings, such as bronchial wall thickening, crazy-paving appearance, and nodules may be useful in distinguishing between P. aeruginosa pneumonia and CMV pneumonia.
  
  
  CONCLUSIONS
  Distinguishing Pseudomonas aeruginosa pneumonia from Cytomegalovirus pneumonia is important. Characteristic features of underlying conditions are present in each pneumonia species. Bronchial wall thickening and cavities are more frequent in Pseudomonas aeruginosa pneumonia. Nodules and a crazy-paving appearance are more frequent in Cytomegalovirus pneumonia.
authors.affiliation: Department of Radiology, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita, 879-5593, Japan, dr_ahmadkhalidomeri@yahoo.com.
authors.forename: Ahmad Khalid
authors.initials: AK
authors.lastname: Omeri
authors.forename: Fumito
authors.initials: F
authors.lastname: Okada
authors.forename: Shoko
authors.initials: S
authors.lastname: Takata
authors.forename: Asami
authors.initials: A
authors.lastname: Ono
authors.forename: Tomoko
authors.initials: T
authors.lastname: Nakayama
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Ando
authors.forename: Haruka
authors.initials: H
authors.lastname: Sato
authors.forename: Kazufumi
authors.initials: K
authors.lastname: Hiramatsu
authors.forename: Hiromu
authors.initials: H
authors.lastname: Mori
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003587:Cytomegalovirus / Q000302:isolation & purification*; D003586:Cytomegalovirus Infections / Q000000981:diagnostic imaging* / Q000821:virology; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D018410:Pneumonia, Bacterial / Q000000981:diagnostic imaging* / Q000382:microbiology; D011024:Pneumonia, Viral / Q000000981:diagnostic imaging* / Q000821:virology; D011552:Pseudomonas Infections / Q000000981:diagnostic imaging* / Q000382:microbiology; D011550:Pseudomonas aeruginosa / Q000302:isolation & purification*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult