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Surg Neurol Int. 2015 Dec 08;6:S651-4. doi: 10.4103/2152-7806.171221. eCollection 2015.

Spontaneous frontal intradiploic meningoencephalocele.

Surgical neurology international

Matthew James McPheeters, Daraspreet S Kainth, Cornelius H Lam

Affiliations

  1. Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota 55455, USA.

PMID: 26713172 PMCID: PMC4683796 DOI: 10.4103/2152-7806.171221

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.

CASE DESCRIPTION: 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.

Keywords: Intradiploic; meningoencephalocele; trauma

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