title: Nasal and paranasal sinus anatomical variations in patients with rhinogenic contact point headache.
abstract: OBJECTIVE
  To define anatomical variations that may lead to rhinogenic contact point headache.
  
  
  METHODS
  Paranasal sinuses CT scan and medical records of sixty-five patients who underwent a successful endoscopic surgery for rhinogenic contact point headache reviewed.
  
  
  RESULTS
  Eleven distinct anatomical variations were found in patients with rhinogenic contact point headache. All of them were surgically curable.
  
  
  CONCLUSIONS
  There are multiple anatomical situations that may lead to rhinogenic contact point headache and each one has its own characteristics. Treatment plan should be personalized for every patient considering the diagnosed anatomical variation.
authors.affiliation: Otolaryngology-Head and Neck Surgery, Urmia Medical University, Urmia, Iran. navidar@yahoo.com
authors.forename: Navid Ahmady
authors.initials: NA
authors.lastname: Roozbahany
authors.forename: Semiramis
authors.initials: S
authors.lastname: Nasri
mesh_terms: D000328:Adult; D063405:Anatomic Variation; D005260:Female; D006261:Headache / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008297:Male; D009666:Nose / Q000000981:diagnostic imaging* / Q000601:surgery; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging* / Q000601:surgery; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed