title: Association between frontal sinus development and persistent metopic suture.
abstract: BACKGROUND
  Frontal sinuses are 2 irregular cavities, placed between 2 lamina of frontal bone. Expansion continues during childhood and reaches full size after puberty. Persistent metopic suture is one of the factors that are related to abnormal frontal sinus development. In this study, we want to discuss about the coexistence of persistent metopic suture and abnormal frontal sinus development using radiological techniques.
  
  
  METHODS
  In this retrospectively planned study, images of 631 patients were examined, 217 (34.4%) of them were men and 414 (65.6%) of them were women. Brain computed tomography and magnetic resonance images were retrieved from the electronic archive for analysis.
  
  
  RESULTS
  In this study, frontal sinus development is categorised as right side atrophy, left side atrophy, bilateral atrophy and bilaterally developed sinuses. The presence of metopic suture was accepted as persistent metopic suture. Frontal sinus atrophy was found in 22.7% and persistent metopic sutures were found in 9.7% of overall.
  
  
  CONCLUSIONS
  In this study, no significant results were detected that were relatedto the frontal sinus agenesis or dismorphism associated with persistent metopicsuture. We conclude that, although publications propounding metopism thatleads to abnormal frontal sinus development are present in the literature, noreasonable explanation has been mentioned in these articles; and we believe thatthese findings are all incidental.
authors.forename: S
authors.initials: S
authors.lastname: Bilgin
authors.forename: U H
authors.initials: UH
authors.lastname: Kantarcı
authors.forename: M
authors.initials: M
authors.lastname: Duymus
authors.forename: C H
authors.initials: CH
authors.lastname: Yildirim
authors.affiliation: Department of Anatomy, Hacettepe University Faculty of Medicine, Ankara, Turkey. burcue@hacettepe.edu.tr.
authors.forename: B
authors.initials: B
authors.lastname: Ercakmak
authors.forename: G
authors.initials: G
authors.lastname: Orman
authors.forename: C
authors.initials: C
authors.lastname: Gunenc Beser
authors.forename: M
authors.initials: M
authors.lastname: Kaya
authors.forename: M
authors.initials: M
authors.lastname: Gok
authors.forename: A
authors.initials: A
authors.lastname: Akbasak
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001284:Atrophy; D003393:Cranial Sutures / Q000002:abnormalities* / Q000254:growth & development; D005260:Female; D005626:Frontal Sinus / Q000002:abnormalities / Q000254:growth & development*; D006801:Humans; D008297:Male; D008875:Middle Aged