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大脑前动脉近端走行于视神经下是一种罕见的解剖异常,目前共有32例报道,常伴有脑动脉瘤。这种异常提示,Ｗｉｌｌｉｓ动脉环前部在胚胎发育中的一种生长畸形,来自于原始前交叉动脉吻合的持续存在或者是眼动脉发育过程中的一种畸形。作者描述了1例有破裂的大脑中动脉动脉瘤和前交
Near the anterior cerebral artery in the optic nerve is a rare anatomical abnormalities, there are a total of 32 cases reported, often accompanied by cerebral aneurysms. This abnormality suggests that a growth malformation of the anterior portion of the Willis arterial ring during embryonic development results from the persistence of anterior anterior cross-caster anastomosis or as a deformity in the development of the ophthalmic artery. The authors describe a case of ruptured middle cerebral artery aneurysms and anterior intercourse