Abstract
According to the Spetzler spinal cord classification system,1 this patient had an extradural-intradural arteriovenous malformation (AVM), also known as a type III or juvenile AVM. The patient underwent a surgical resection of the lesion via a cervical 3 to cervical 6 laminoplasty. Direct observation confirmed intra- and extramedullary components. During the surgical resection, an attempt was made to avoid transgressing the pia mater. Therefore, the traversing vessels were interrupted during the circumdissection. The nidus was removed, and postprocedural digital subtraction angiography confirmed complete obliteration. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
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