Objective and importance: Third ventriculostomy for the management of noncommunicating hydrocephalus is a commonly performed procedure with a 5% complication rate. One of the known complications is basilar artery injury.
Clinical presentation: We report a case of basilar artery injury, intraventricular hemorrhage, and false aneurysm formation in a 30-month-old boy after third ventricle floor fenestration.
Intervention: The false aneurysm was managed with endovascular trapping by use of Guglielmi detachable coils without morbidity.
Conclusion: Endovascular therapy can be used successfully to manage vascular injury after third ventriculostomy.