罕见大脑中动脉变异——树枝样大脑中动脉(Twig-like MCA),注意跟烟雾病鉴别! #血管变异 #医学影像 #DSA - 吕明于20230516发布在抖音,已经收获了73.5万个喜欢,来抖音,记录美好生活!
树枝状大脑中动脉(Twig-like MCA)是一种罕见的脑血管发育畸形。MCA主干缺失,远端的树枝状血管质脆,在血流动力学的剪切力下可并发脑出血、脑梗死、TIA或动脉瘤。#医学科普 #医学影像 #树枝状大脑中动脉 #脑血管造影 #先天畸形 53 7 11 2 举报发布时间:2024-11-12 21:26 全部评论 大家都在搜: 忙碌才是...
a. CT示脑出血并脑室内、蛛网膜下腔出血;b. CTA示左侧MCA M1段闭塞(箭)及囊袋状动脉瘤(箭头);左侧颈内动脉DSA前后观(c)和侧面观(d)示左侧MCA M1段走行区可见细枝样网状血管,其上可见2个动脉瘤(箭头);e. 3D 血管重建示左侧MCA细枝样网状血管;f.术后DSA随访细枝样网状血管上动脉瘤消失 目前尚无诊断标...
Introduction: Twig-like middle cerebral artery (T-MCA) or rete mirabile anomaly is a rare vascular anomaly with clinical relevance characterized by the replacement of the M1 segment by a plexiform network of small vessels1. With an incidence ranging from 0.11% to 1.17%, it is more prevalent ...
Two patients presented with nonaneurysmal SAH due to an unfused or twiglike MCA. Both patients had stenosis of the proximal M1 segment of the left MCA and abnormal vascular nets distal to the stenotic lesion.Vasculaturedistal to the abnormal vascular nets remained grossly normal. These findings ...
?twig-like MCA? (T-MCA), ?aplastic MCA,? ?unfused MCA,? and others are all synonyms for unilateral embryological anomaly of the M1 segment of the MCA, where, due to an unknown cause, fusion of primordial arteries of the M1 segment did not happen. As a result, the ...
Background and purpose: Aplastic or twig-like middle cerebral artery (MCA) is a rare vascular anomaly characterized by replacement of the M1 segment by a plexiform network of small vessels. Though rare, familiarity with this entity and ability to differentiate it from radiological mimics such as ...
T-MCA = twiglike MCACongenital anomalies of the MCA are rare compared with the rest of the intracranial vasculature. An aplastic MCA, known as a twiglike MCA, is the result of replacement of MCA trunk by a plexiform network of small vessels. In this report, we aim to review the ...
MCA, middle cerebral arteryUf/Tw, unfused or twig-likeMiddle cerebral arteryTwigAnomalyThe knowledge of anatomic variations of the cerebral arterial circulation may be important to decide on the safest surgical or endovascular treatment method. Variations in the middle cerebral artery (MCA) territory ...
·大脑中动脉动脉粥样硬化性重度狭窄或闭塞:临床症状、丰富的柔脑膜侧支循环和其他受累血管可与先天性MCA网状变异相鉴别。 ·大脑中动脉动静脉畸形:有供血动脉或引流静脉 写在后面 先天性大脑中动脉网状变异是具有正常功能的,但血管质脆,无症状时无需干预,除非血管具有破裂出血的可能; ...