title: Spontaneous frontal intradiploic meningoencephalocele.
abstract: BACKGROUND
  Since 1976, 10 cases of intradiploic encephaloceles have been reported in the literature. This case is the first report of a spontaneous intradiploic meningoencephalocele of the frontal bone hypothesized to be secondary to distant head trauma.
  
  
  METHODS
  A 60-year-old female with a history of multiple traumatic head injuries as a child presenting with new onset generalized tonic-clonic seizures. Work-up revealed a right frontal epileptic focus. Imaging showed a right frontal intradiploic lesion. The patient underwent surgical resection, which during exploration was found to be an intradiploic encephalocele. She had an uneventful postoperative course with a resolution of seizures.
  
  
  CONCLUSIONS
  The authors hypothesize that the rare nature of posttraumatic frontal intradiploic encephaloceles is due to the increased thickness of the frontal bone compared to the parietal bone.
authors.affiliation: Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota 55455, USA.
authors.forename: Matthew James
authors.initials: MJ
authors.lastname: McPheeters
authors.affiliation: Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota 55455, USA.
authors.forename: Daraspreet S
authors.initials: DS
authors.lastname: Kainth
authors.affiliation: Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota 55455, USA.
authors.forename: Cornelius H
authors.initials: CH
authors.lastname: Lam
keywords: Intradiploic; meningoencephalocele; trauma