Abstract
Spinal cord arteriovenous fistula (AVF) is a rare entity and is one of the causes of intracranial subarachnoid hemorrhage (SAH). We experienced a 67-year-old woman with cervical cord perimedullary AVF, which presented as SAH at onset. Although we did not detect the cause of SAH on initial intracranial angiography, she was diagnosed as having cervical perimedullary AVF at the C1 level. Because she refused any surgical or endovascular treatment, she was closely followed-up with angiography, magnetic resonance imaging, and computed tomography. During the follow-up period, the varix and feeding artery spontaneously regressed at 9 and 44 months, respectively. She was doing well without neurological deficit or rebleeding. This is the first report of spontaneous obliteration of cervical arteriovenous fistulas.
