title: Prevalence of pathologic findings in the maxillary sinus in cone-beam computerized tomography.
abstract: OBJECTIVE
  The aim of this study was to assess the prevalence of pathologic findings in the maxillary sinus by using cone-beam computerized tomography (CBCT).
  
  
  METHODS
  One thousand twenty-nine consecutive CBCT scans were retrospectively inspected for pathologic findings in the maxillary sinus by 3 observers. Findings were differentiated by mucosal thickening, partial opacification with liquid accumulation, total opacification, and polypoidal mucosal thickening. Position and diameter of the maxillary sinus ostium were assessed. Correlations for pathologic findings and the factors of age and gender were calculated. Patients with clinical manifestations of sinusitis or total opacification in either sinus were reevaluated.
  
  
  RESULTS
  A total prevalence for pathologies in the maxillary sinus of 56.3% was found in this study. The most frequent pathology was mucosal thickening. Patients >60 years of age showed significantly more pathologies in the maxillary sinus (P = .02), and male patients showed significantly more pathologies than female patients (P = .01). Clinical signs of sinusitis could be confirmed on CBCT images for all patients.
  
  
  CONCLUSIONS
  Pathologies in the maxillary sinus are frequently found in CBCT imaging and have to be treated or followed-up accordingly. CBCT is applicable for diagnosis and treatment planning of clinically present sinusitis.
authors: Interdisciplinary Outpatient Department of Oral Surgery and Implantology, Department of Craniomaxillofacial and Plastic Surgery, University of Cologne, Germany. lutz.ritter@uk-koeln.de
authors: Lutz
authors: L
authors: Ritter
authors: Jürgen
authors: J
authors: Lutz
authors: Joerg
authors: J
authors: Neugebauer
authors: Martin
authors: M
authors: Scheer
authors: Timo
authors: T
authors: Dreiseidler
authors: Max J
authors: MJ
authors: Zinser
authors: Daniel
authors: D
authors: Rothamel
authors: Robert A
authors: RA
authors: Mischkowski
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D054893:Cone-Beam Computed Tomography; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging* / Q000473:pathology*; D015523:Maxillary Sinusitis / Q000000981:diagnostic imaging* / Q000473:pathology*; D008875:Middle Aged; D009297:Nasal Mucosa / Q000473:pathology; D012189:Retrospective Studies; D012737:Sex Factors; D055815:Young Adult