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Deep Subcortical AVMs

Last Updated: April 25, 2020

Microsurgical Resection of a Superior Thalamic AVM

Subcortical arteriovenous malformations (AVMs) are formidable pathologies given their deep, highly eloquent parenchymal locations. Advanced knowledge of the microsurgical anatomy of the core hemispheric structures and their indispensable vascular supply is essential for safe and complete resection of these deep and insular AVMs.

Many of these malformations should be exposed during surgery only if the nidus is compact and reaches a safe ependymal or pial surface, if the patient has suffered a hemorrhagic event resulting in neurologic deficits, or if radiosurgery treatment has failed. Appropriate patient selection is imperative for acceptable results.

Operative Anatomy

The hemispheric core or basal nuclear structures lie medial and deep t...