Onyx embolization of an avulsed thalamoperforator following endoscopic colloid cyst and lamina terminalis fenestration.

Abstract

A patient presented with headaches and was found to have a colloid cyst in the third ventricle and ventriculomegaly. The patient underwent endoscopic colloid cyst resection and third ventriculostomy without incidence. Prior to emergence, a blown right pupil was acutely noted, and bright red blood emanated from the ventricular drain that was routinely placed in the endoscopy tract at the conclusion of the procedure. CTangiography demonstrated active extravasation from the pre-pontine cistern into the third ventricle and subarachnoid space. Emergency DSA confirmed active extravasation from an avulsed thalamoperforator arising from the proximal right P1 posterior cerebral artery, which was immediately embolized without incident.

• Authors: Raymond D Turner, Imran Chaudry, Aquilla Turk, Alejandro Spiotta
• Journal: Journal of neurointerventional surgery (J Neurointerv Surg) Vol. 7 Issue 8 Pg. e27 (Aug 2015) ISSN: 1759-8486 [Electronic] England
• PMID: 25063695 (Publication Type: Case Reports, Journal Article)
• Copyright: Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

Chemical References

• Drug Combinations
• Onyx 18
• Polyvinyls
• Tantalum

Topics

• Colloid Cysts (diagnostic imaging, surgery)
• Drug Combinations
• Embolization, Therapeutic (methods)
• Endoscopy (adverse effects)
• Humans
• Hypothalamus (diagnostic imaging, surgery)
• Polyvinyls (administration & dosage)
• Posterior Cerebral Artery (diagnostic imaging)
• Radiography
• Tantalum (administration & dosage)
• Third Ventricle (diagnostic imaging, surgery)
• Ventriculostomy (adverse effects)