TY - JOUR T1 - Abnormalities in the Cerebral Arterial System in Osteogenesis Imperfecta JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 748 LP - 750 VL - 24 IS - 4 AU - Sait Albayram AU - Osman Kizilkilic AU - Halit Yilmaz AU - Beyhan Tuysuz AU - Naci Kocer AU - Civan Islak Y1 - 2003/04/01 UR - http://www.ajnr.org/content/24/4/748.abstract N2 - Summary: A 9-year-old girl with osteogenesis imperfecta (OI) type 4 was admitted to the hospital because of choreatic movement. Cerebral angiography demonstrated bilateral symmetrical stenosis of the proximal cavernous segment of internal carotid artery, prethrombotic occlusion of the M1 segment of left middle cerebral artery, and moyamoya-like collateral vascular structure arising from the right lenticulostriate arteries. After a literature review, these findings were interpreted as vasculopathic changes secondary to vascular fragility caused by the collagen abnormality in OI. ER -