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Child's Nervous System

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01-11-2016 | Original Paper

Pediatric intraventricular arachnoid cysts in the body of lateral ventricle: surgical outcome and its embryologic background

Authors: Bettina Knie, Nobuhito Morota, Satoshi Ihara, Goichiro Tamura, Hideki Ogiwara

Published in: Child's Nervous System | Issue 11/2016

Abstract

Purpose

The aim of this study is for the surgical treatment and outcome of the endoscopic fenestration of the arachnoid cyst located in the ventricular body to trigone in the pediatric population. Special concern was paid for the developmental origin of the intraventricular cysts estimated from the postoperative follow-up neuroimagings.

Patients and methods

Between July 2002 and June 2015, we performed endoscopic and partly CT/MRI navigated fenestrations of intraventricular arachnoid cysts located at the body to trigone of the lateral ventricle in ten pediatric patients aged 2 months to 5 years. Based on the long axis of the cyst, we have opted for two surgical approaches: anterior approach via burr hole at Kocher’s point and posterior approach via burr hole at the posterior occipital region. Fenestration was performed based on the intraoperative findings, either ventriculocystostomy, ventriculocystoventriculostomy, or ventriculocystocisternostomy.

Results

Intraventricular arachnoid cysts located in the body-trigone region showed a favorable outcome after endoscopic fenestration. All of the cysts shrank postoperatively. Follow-up neuroimagings taken between 6 and 126 months after surgery strongly suggested its relationship with the midline cisterns. Of our ten cases, eight were suggestive for originating from the velum interpositum cistern while two seemed to root from the quadrigeminal cistern.

Conclusion

In the present study, we found that endoscopic fenestration of intraventricular arachnoid cysts in the body to trigone is a safe procedure with a satisfactory outcome. In our limited experience, there are two anatomic backgrounds; velum interpositum cistern and quadrigeminal cistern. Differentiation can be possible by neuroimagings, especially those obtained after surgery.

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Title: Pediatric intraventricular arachnoid cysts in the body of lateral ventricle: surgical outcome and its embryologic background
Authors: Bettina Knie
Nobuhito Morota
Satoshi Ihara
Goichiro Tamura
Hideki Ogiwara
Publication date: 01-11-2016
Publisher: Springer Berlin Heidelberg
Published in: Child's Nervous System / Issue 11/2016
Print ISSN: 0256-7040
Electronic ISSN: 1433-0350
DOI: https://doi.org/10.1007/s00381-016-3203-2

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Pediatric intraventricular arachnoid cysts in the body of lateral ventricle: surgical outcome and its embryologic background

Abstract

Purpose

Patients and methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Purpose

Patients and methods

Results

Conclusion

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