title: Computed tomographic assessment of chronic rhinosinusitis with asthma.
abstract: BACKGROUND
  The purpose of this study was to investigate differences in the extent of disease in patients with chronic rhinosinusitis (CRS) both with and without asthma.
  
  
  METHODS
  Medical records and computed tomographic (CT) scans of 48 consecutive asthmatic patients and 523 nonasthmatic patients with CRS between April 1995 and December 2001 were reviewed, retrospectively. Each sinus in the ostiomeatal complex CT scans was assigned a score of 0-2 according to the extent of disease using the Lund-Mackay scoring system, and the ratios of the score of each sinus to the total score were analyzed for the difference between the asthmatic and nonasthmatic groups. A Mann-Whitney test was used for statistical evaluation, with p < 0.05 accepted as statistically significant.
  
  
  RESULTS
  The ratios of ethmoid sinus score to total score were higher in asthmatic patients than in nonasthmatic patients (p < 0.001), and the ratios of the score of maxillary sinus to total score were lower in asthmatic patients than in nonasthmatic patients (p < 0.001).
  
  
  CONCLUSIONS
  Our study shows that the ethmoid sinus is the preferred site of CRS in patients with coexisting asthma.
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. hjdhong@smc.samsung.co.kr
authors.forename: Hun-Jong
authors.initials: HJ
authors.lastname: Dhong
authors.forename: Hyo Yeol
authors.initials: HY
authors.lastname: Kim
authors.forename: Young-Jun
authors.initials: YJ
authors.lastname: Chung
authors.forename: Tae Wook
authors.initials: TW
authors.lastname: Kim
authors.forename: Joon Ho
authors.initials: JH
authors.lastname: Kim
authors.forename: Seung-Kyu
authors.initials: SK
authors.lastname: Chung
authors.forename: Myung-Gu
authors.initials: MG
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001249:Asthma / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging*; D016022:Case-Control Studies; D002908:Chronic Disease; D015521:Ethmoid Sinusitis / Q000000981:diagnostic imaging* / Q000473:pathology; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008297:Male; D015523:Maxillary Sinusitis / Q000000981:diagnostic imaging* / Q000473:pathology; D008875:Middle Aged; D012129:Respiratory Function Tests; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed