de Sousa Camila Soares Moreira, de Miranda Carla Lorena Vasques Mendes, Avelino Marcelo Coelho, Bastos Breno Braga, Moreira de Sousa Rafael Soares, de Miranda Carla Valéria Vasques Mendes
Division of Radiology, Medimagem, Teresina, PI, Brazil.
Division of Radiology, Medimagem, Teresina, PI, Brazil; Division of Radiology, Emergency Hospital in Teresina Dr. Zenon Rocha, Teresina, PI, Brazil.
Case Rep Radiol. 2017;2017:5409430. doi: 10.1155/2017/5409430. Epub 2017 Feb 12.
The azygos anterior cerebral artery is a rare variant, characterized by the absence of the anterior communicating artery and the union of two proximal segments of the anterior cerebral artery, forming a single trunk and ascending through the interhemispheric fissure. The incidence in the population varies from 0.3 to 2%. The presence of occlusion for this vessel causes bifrontal infarcts, with potentially devastating functional consequences, hence the importance of recognizing this anatomical variation in imaging exams.
奇静脉型大脑前动脉是一种罕见的变异，其特征为前交通动脉缺如，大脑前动脉两个近端节段合并，形成单一主干并通过大脑镰下间隙上升。在人群中的发生率为0.3%至2%。该血管闭塞会导致双侧额叶梗死，可能产生严重的功能后果，因此在影像学检查中识别这种解剖变异很重要。
