title: [Analysis of the reason that patients with chronic sinusitis having a negative CT manifestation].
abstract: OBJECTIVE
  To explore the reason why the CT manifestation of the patients with chronic nasosinusitis is negative.
  
  
  METHODS
  To analyze the clinical and CT manifestation of the patients with chronic sinusitis having a negative CT manifestation.
  
  
  RESULTS
  Pathological changes were found in all 8 patients during the course of endoscopic sinus surgery, such as pus storing in the sinus cavity, mucous swelling polypoidly, small polyps formation and so on.
  
  
  CONCLUSIONS
  The reasons that the patients with chronic sinusitis having a negative CT manifestation are, 1. CT scan can only give a static one-off image, 2. partial volume effect, 3. maybe result from the location of CT scan and the resolving power of tomograph, 4. maybe attribute to the pathological classify of chronic sinusitis.
authors.affiliation: Department of Otolaryngology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030.
authors.forename: H
authors.initials: H
authors.lastname: Chu
authors.forename: X
authors.initials: X
authors.lastname: Hua
authors.forename: Q
authors.initials: Q
authors.lastname: Gao
authors.forename: Y
authors.initials: Y
authors.lastname: Cui
mesh_terms: D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D012852:Sinusitis / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed