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小脑后下动脉硬膜外起源伴椎动脉窗式变异1例报道 被引量:4

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摘要 患者男,31岁,因左手无力1周入院。入院时查体:血压120/80 mmHg,神智清楚,言语流利,左上肢远端肌力4级。头颅MRI示右侧顶叶散在多发亚急性脑梗死,考虑脑梗死。行全脑血管造影检查,提示右侧大脑中动脉中度狭窄,为此次脑血管事件责任血管;另外发现右侧小脑后下动脉( posterior Inferior cerebellar artery, PICA)起源于椎动脉颅外段,平C2水平(图1);左侧椎动脉在C1下方平面分成两支,其中1支向上穿越横突孔,另1支行向后上方绕过C1横突,于C1上方平面前后两条血管合并为1条椎动脉上行入颅(图2)。因此,此例患者存在一种少见的小脑后下动脉起源变异伴对侧椎动脉窗式变异。
出处 《中华解剖与临床杂志》 2015年第1期87-88,共2页 Chinese Journal of Anatomy and Clinics
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