NA;Three rare cases of moyamoyahyphen;like diseases with moyamoya type vessels caused by spontaneous internal carotid artery occlusion, spontaneous middle cerebral artery occlusion, and internal carotid artery occlusion due to cervical irradiation are presented. They resulted in ventricular hemorrhages. One patient died and two survived. Postoperatively, the collateral circulation of the survivors was evaluated by single photon emission tomography usingNhyphen;isopropylhyphen;lsqb;123Irsqb;hyphen;phyphen;iodoamphetamine. The effectiveness of reconstructive surgery is shown, and moyamoyahyphen;like diseases that have been reported are reviewed. lpar;Neurosurgery17colon;260hyphen;266, 1985rpar;
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