| Occult middle fossa encephaloceles in patients with temporal lobe epilepsy. | |
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MedLine Citation:
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PMID: 20920939 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Middle fossa encephaloceles are rare structural defects previously reported to cause complex partial seizures. Their debated etiology is either by failed union of temporal and sphenoid bone ossification centers or by erosion of the middle fossa floor secondary to pressure phenomena. Although magnetic resonance imaging (MRI) often reveals abnormalities, the actual encephalocele may not be identified preoperatively. METHODS: We present three cases of middle fossa encephaloceles that were identified intraoperatively and provide a review of the relevant literature. RESULTS: All three of our case presentations demonstrate patients with medically intractable epilepsy and intraoperative findings of middle fossa encephaloceles. In all patients, careful retrospective analysis of preoperative imaging provided clues to these encephaloceles, although none were suspected before surgery. After resection of the area all patients had improved seizure outcome. CONCLUSION: Middle fossa encephaloceles should be recognized as a potential source of epileptic pathology in patients with complex partial seizures. Although only 12 cases are reported in the literature, we believe that this phenomenon may be more common than previously recognized. We suggest that simple resection of the encephalocele alone may result in long-lasting, excellent seizure outcomes without amygdalohippocampectomy. |
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Authors:
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Richard W Byrne; Adam P Smith; David Roh; Andres Kanner |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: World neurosurgery Volume: 73 ISSN: 1878-8750 ISO Abbreviation: World Neurosurg Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-10-05 Completed Date: 2010-10-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101528275 Medline TA: World Neurosurg Country: United States |
Other Details:
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Languages: eng Pagination: 541-6 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Neurosurgery, Rush University Medical Center, Chicago, Illinois, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cranial Fossa, Middle / pathology*, radionuclide imaging Electroencephalography Encephalocele / complications, pathology*, radionuclide imaging Epilepsy, Temporal Lobe / complications, pathology*, radionuclide imaging Female Gliosis / complications, pathology Humans Magnetic Resonance Imaging Male Middle Aged Neurosurgical Procedures Positron-Emission Tomography Seizures / therapy Treatment Outcome |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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