• C Nagashima, A Miyoshi, R Nagashima, M Ogawa, K Enomoto, and T Watabe.
• Department of Neurosurgery, Saitama Medical School, Japan.
• Surg Neurol. 1996 Jun 1; 45 (6): 524-31; discussion 531-2.

BackgroundGiant intradural perimedullary arteriovenous fistula with massive spinal cord compression is rare. The therapeutic difficulties include whether endovascular embolization or direct surgical excision should be selected. We present a patient with the largest giant spinal intradural perimedullary arteriovenous fistula shown by magnetic resonance imaging so far reported, who was successfully treated by a combination of endovascular embolization and direct surgery.Case DescriptionA 16-year-old girl presented with a giant intradural arteriovenous fistula (perimedullary Type II) at the C4-5 level, manifesting as progressive cervical myeloradiculopathy. The single-hole fistula was supplied by the anterior spinal artery and an ascending artery arising from both the costocervical and highest intercostal arteries with a rapid transit time, and drained superiorly to the foramen magnum, and inferiorly to the thoracic spinal canal, through a huge venous lake at the site of the arteriovenous connection. The patient was treated by transarterial embolization with platinum coils and silk, followed by surgical excision with excellent results at 12 months' follow-up.ConclusionsWe recommend that such a huge perimedullary arteriovenous fistula with a rapid transit time, and severe cord and root compression, should be treated with embolization followed by surgical excision.

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