title: Isolated fractures of the posterior maxillary sinus: CT appearance and proposed mechanism.
abstract: A heretofore unreported type of facial fracture is discussed. Twenty-two cases of posterior maxillary wall fracture are reviewed, of which 59% demonstrated concomitant mandibular fracture. The proposed mechanism for this injury is an impact from the ipsilateral mandibular coronoid process striking the posterior maxillary wall, with associated mandibular dislocation or fracture. As such, further investigation of the mandible may be warranted when this type of maxillary wall fracture is encountered to exclude concomitant injury.
authors.affiliation: Department of Radiology, Wake Forest University, Winston-Salem, North Carolina, USA. jssimonds@hotmail.com
authors.forename: J S
authors.initials: JS
authors.lastname: Simonds
authors.forename: C T
authors.initials: CT
authors.lastname: Whitlow
authors.forename: M Y M
authors.initials: MY
authors.lastname: Chen
authors.forename: D W
authors.initials: DW
authors.lastname: Williams
mesh_terms: D000328:Adult; D005147:Facial Bones / Q000293:injuries* / Q000528:radiation effects*; D005151:Facial Injuries / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging* / Q000293:injuries*; D008875:Middle Aged; D012887:Skull Fractures / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult