TY - JOUR T1 - Magnification Angiography of Cerebral Aneurysms Associated with Moyamoya Disease JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 547 LP - 550 VL - 1 IS - 6 AU - Mutsumasa Takahashi Y1 - 1980/11/01 UR - http://www.ajnr.org/content/1/6/547.abstract N2 - The true cause of intracranial hemorrhage in moyamoya disease has not been clarified. Magnification cerebral angiograms were reviewed for seven patients. In four, small saccular aneurysms were seen arising from abnormally dilated collateral vessels or feeding arteries. This study suggests that aneurysms may be a source of hemorrhage in addition to the generally accepted rupture from abnormally dilated collateral vessels. ER -