Intracranial Dural Arteriovenous Fistula Presenting with Tetraparesis Due to Cervicomedullary Junction Compression

摘要

Cranial dural arteriovenous fistulas (DAVFs) may give rise to myelopathy due to spinal peri-medullary venous drainage causing intrame-dullary venous hypertension. Such cases are uncommon but not rare, with several cases reported in the literature. We report a case of foramen magnum DAVF presenting with symptoms of tetraparesis. The unusual feature was that in this case it was due to compression of the cervi-comedullary junction by a large venous pouch rather than the result of spinal perimedullary venous hypertension. Transarterial glue emboliza-tion achieved good reduction of flow in the fistula with shrinkage of the venous pouch and corresponding clinical improvement.