TY - JOUR T1 - Pseudoaneurysm of the Anterior Spinal Artery in a Patient with Moyamoya: An Unusual Cause of Subarachnoid Hemorrhage JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1576 LP - 1578 VL - 27 IS - 7 AU - D.M. Walz AU - R.F. Woldenberg AU - A. Setton Y1 - 2006/08/01 UR - http://www.ajnr.org/content/27/7/1576.abstract N2 - 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. ER -