Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe Epilepsy

Background and Importance: Arachnoid cysts are developmental cystic lesions which may be found as an incidental finding on neuroimaging or present with symptoms of headache, seizure and neurologic deficit. Presentation with seizure is more common with larger sizes and temporal location. Presentatio...

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Main Authors: Arash Saffarian, Nima Derakhshan, Mousa Taghipour, Mohammad Faramarzi, Ali Akbar Asadipooya, Amirreza Dehghanian, Keyvan Eghbal
Format: Article
Language:English
Published: Guilan University of Medical Sciences 2019-04-01
Series:Iranian Journal of Neurosurgery
Subjects:
Online Access:http://irjns.org/article-1-168-en.html
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author Arash Saffarian
Nima Derakhshan
Mousa Taghipour
Mohammad Faramarzi
Ali Akbar Asadipooya
Amirreza Dehghanian
Keyvan Eghbal
author_facet Arash Saffarian
Nima Derakhshan
Mousa Taghipour
Mohammad Faramarzi
Ali Akbar Asadipooya
Amirreza Dehghanian
Keyvan Eghbal
author_sort Arash Saffarian
collection DOAJ
description Background and Importance: Arachnoid cysts are developmental cystic lesions which may be found as an incidental finding on neuroimaging or present with symptoms of headache, seizure and neurologic deficit. Presentation with seizure is more common with larger sizes and temporal location. Presentation with Temporal Lobe Epilepsy (TLE) is rare, and fenestration of cysts has variable results for seizure control. We reported controlling TLE symptoms following endoscopic transsphenoidal fenestration of an arachnoid cyst. The anteromedial location in middle fossa, extension toward sphenoid sinus and normal appearance of mesial temporal structures on MRI encouraged us to consider this surgical approach. Case Presentation: A 26-year-old patient with a 13-year history of TLE with uncontrolled symptoms despite taking a combination of AEDs (LTG, CBZ, LEV, CLB) was referred to our clinic. Neuroimaging revealed an arachnoid cyst in anteromedial part of temporal fossa which extended to sphenoid sinus, but showed no abnormality in mesial temporal structures. Endoscopic endonasal transsphenoidal fenestration of the arachnoid cyst was performed, and followed by reconstruction of the skull base. The procedure improved the seizure control during the 9-month follow-up and no sign of radiologic recurrence was observed. Conclusion: Transsphenoidal endoscopic fenestration is a safe and feasible surgical approach for treatment of symptomatic arachnoid cysts in anteromedial part of middle fossa especially when they extend toward lateral wall of sphenoid sinus. This surgical corridor has the privilege of avoiding cortical injury accompanied by transcranial approaches, which is deleterious in epileptic patients.
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spelling doaj.art-f36c7ae2a89147dc9453455b559746632022-12-21T21:24:52ZengGuilan University of Medical SciencesIranian Journal of Neurosurgery2423-64972423-64972019-04-01529398Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe EpilepsyArash Saffarian0Nima Derakhshan1Mousa Taghipour2Mohammad Faramarzi3Ali Akbar Asadipooya4Amirreza Dehghanian5Keyvan Eghbal6 Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran Department of Otolaryngology, Shiraz University of Medical Sciences, Shiraz, Iran 1. Department of Neurology, Shiraz University of Medical Sciences, Shiraz, Iran 2. Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA Pathology Department, Shiraz University of Medical Sciences, Shiraz, Iran Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran Background and Importance: Arachnoid cysts are developmental cystic lesions which may be found as an incidental finding on neuroimaging or present with symptoms of headache, seizure and neurologic deficit. Presentation with seizure is more common with larger sizes and temporal location. Presentation with Temporal Lobe Epilepsy (TLE) is rare, and fenestration of cysts has variable results for seizure control. We reported controlling TLE symptoms following endoscopic transsphenoidal fenestration of an arachnoid cyst. The anteromedial location in middle fossa, extension toward sphenoid sinus and normal appearance of mesial temporal structures on MRI encouraged us to consider this surgical approach. Case Presentation: A 26-year-old patient with a 13-year history of TLE with uncontrolled symptoms despite taking a combination of AEDs (LTG, CBZ, LEV, CLB) was referred to our clinic. Neuroimaging revealed an arachnoid cyst in anteromedial part of temporal fossa which extended to sphenoid sinus, but showed no abnormality in mesial temporal structures. Endoscopic endonasal transsphenoidal fenestration of the arachnoid cyst was performed, and followed by reconstruction of the skull base. The procedure improved the seizure control during the 9-month follow-up and no sign of radiologic recurrence was observed. Conclusion: Transsphenoidal endoscopic fenestration is a safe and feasible surgical approach for treatment of symptomatic arachnoid cysts in anteromedial part of middle fossa especially when they extend toward lateral wall of sphenoid sinus. This surgical corridor has the privilege of avoiding cortical injury accompanied by transcranial approaches, which is deleterious in epileptic patients.http://irjns.org/article-1-168-en.htmltemporal lobe epilepsy (tle)neuroendoscopytranssphenoidalarachnoid cyst
spellingShingle Arash Saffarian
Nima Derakhshan
Mousa Taghipour
Mohammad Faramarzi
Ali Akbar Asadipooya
Amirreza Dehghanian
Keyvan Eghbal
Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe Epilepsy
Iranian Journal of Neurosurgery
temporal lobe epilepsy (tle)
neuroendoscopy
transsphenoidal
arachnoid cyst
title Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe Epilepsy
title_full Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe Epilepsy
title_fullStr Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe Epilepsy
title_full_unstemmed Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe Epilepsy
title_short Endoscopic Transsphenoidal Fenestration of a Medial Temporal Arachnoid Cyst With Extension to Sphenoid Sinus in a Patient With Temporal Lobe Epilepsy
title_sort endoscopic transsphenoidal fenestration of a medial temporal arachnoid cyst with extension to sphenoid sinus in a patient with temporal lobe epilepsy
topic temporal lobe epilepsy (tle)
neuroendoscopy
transsphenoidal
arachnoid cyst
url http://irjns.org/article-1-168-en.html
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