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Updated: Feb 26, 2026
Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Intraventricular Meningioma Resection with Postoperative Ischemia of the Lateral Geniculate Nucleus
Saman Sizdahkhani1, Stephen T Magill2, Michael W McDermott2
1Chicago Medical School at Rosalind Franklin University, North Chicago, Illinois, USA.
Background:
Intraventricular meningiomas comprise 0.5%-3% of intracranial meningiomas. They often cause obstructive hydrocephalus and commonly are treated with surgical resection or stereotactic radiosurgery.
Objective:
To describe the surgical approaches and resection techniques needed to approach intraventricular tumors while highlighting the eloquent anatomy and blood supply surrounding the ventricular system to avoid neurological injury.
Methods:
Two cases of left atrial intraventricular meningiomas that were complicated by postoperative lateral geniculate nucleus ischemia and resultant temporary contralateral quadrantanopia are described. The safe surgical approaches to the atrium of lateral ventricles as well as the anatomy and blood supply to the lateral geniculate nucleus and optic radiation are discussed and illustrated.
Results:
In both cases, the patients had complete resection of their tumors. They both ultimately made a good recovery after transient visual deficits. These cases provide useful demonstrations of eloquent anatomy of the ventricular walls and visual pathway anatomy.
Conclusions:
Care must be taken to avoid visual pathways along the lateral ventricle wall and the nearby arterial supply of the lateral geniculate nucleus from the choroidal arteries when resecting intraventricular tumors.
