title: Radiological and clinical course of pneumonia in patients with avian influenza H5N1.
abstract: BACKGROUND
  We evaluated chest X-ray and clinical findings of patients with lower respiratory tract infection due to influenza H5N1 and presented the radiological findings and clinical course of the infection.
  
  
  METHODS
  Between December 2005 and February 2006, eight hospitalized patients (median age 10, 5-15 years) with avian-flu were evaluated in this study. All patients were evaluated with chest X-ray and four of them with CT scan. Post mortem pathological characterization were also available for three of the patients.
  
  
  RESULTS
  A rapidly progressive pneumonia with high mortality rate was observed especially for cases with late admission. The major radiologic abnormalities were extensive pneumonic infiltration with segmental and multifocal distribution, mostly located in lower zones of the lung. No pleural effusion and hilar lymphadenopathy was noted.
  
  
  CONCLUSIONS
  Avian flu may be presented as rapidly progressive pneumonia. The chest radiography has an important role in diagnosis and should be obtained daily because of rapid change of the findings that may necessitate prompt action.
authors.affiliation: Yuzuncu Yil University, Faculty of Medicine, Department of Pediatrics, Van, Turkey. bayalibay@yahoo.com
authors.forename: Ali
authors.initials: A
authors.lastname: Bay
authors.forename: Omer
authors.initials: O
authors.lastname: Etlik
authors.forename: A Faik
authors.initials: AF
authors.lastname: Oner
authors.forename: Ozkan
authors.initials: O
authors.lastname: Unal
authors.forename: Halil
authors.initials: H
authors.lastname: Arslan
authors.forename: Aydin
authors.initials: A
authors.lastname: Bora
authors.forename: Ramazan
authors.initials: R
authors.lastname: Davran
authors.forename: Sevil Ari
authors.initials: SA
authors.lastname: Yuca
authors.forename: Murat
authors.initials: M
authors.lastname: Dogan
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype / Q000302:isolation & purification*; D007251:Influenza, Human / Q000000981:diagnostic imaging* / Q000401:mortality / Q000473:pathology; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D011024:Pneumonia, Viral / Q000000981:diagnostic imaging* / Q000401:mortality / Q000473:pathology; D014057:Tomography, X-Ray Computed