PT - JOURNAL ARTICLE AU - Walz, D.M. AU - Woldenberg, R.F. AU - Setton, A. TI - Pseudoaneurysm of the Anterior Spinal Artery in a Patient with Moyamoya: An Unusual Cause of Subarachnoid Hemorrhage DP - 2006 Aug 01 TA - American Journal of Neuroradiology PG - 1576--1578 VI - 27 IP - 7 4099 - http://www.ajnr.org/content/27/7/1576.short 4100 - http://www.ajnr.org/content/27/7/1576.full SO - Am. J. Neuroradiol.2006 Aug 01; 27 AB - SUMMARY: Subarachnoid hemorrhage (SAH) is a recognized presentation of Moyamoya disease in adults. Because there are extensive collateral networks and potential complications that develop, a thorough investigation of the intracranial and extracranial circulation is necessary to exclude a treatable cause when these patients present with SAH. We present a case of SAH due to a ruptured pseudoaneurysm of the anterior spinal artery arising from the supreme intercostal artery, which was the sole source of blood supply to the intracranial circulation.