The anterior cerebral artery (ACA) is a unique artery with many important variations with substantial clinical significance. Tortuous intracranial arteries usually occur in basilar, communicating, anterior, posterior cerebral arteries and in the white matter arterioles. This could happen for many reasons including but not limited to ageing, hypertension, patients with Moyamoya disease, congenital malformation, or increased flow associated with elastin degradation. While dolichoectasia of the ACA has been described even in children, to our knowledge, a serpiginous ACA without ectasia has not been reported, especially in the pediatric population.

中文翻译：

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锯齿状的腓肠前脑动脉。

前脑动脉（ACA）是唯一的动脉，具有许多重要的变化，具有重要的临床意义。曲折的颅内动脉通常发生在基底，沟通，前，后脑动脉和白质小动脉中。发生这种情况的原因可能很多，包括但不限于衰老，高血压，烟雾病，先天性畸形或与弹性蛋白降解有关的血流增加。尽管即使在儿童中也描述了ACA的毛细支气管扩张，但据我们所知，尚未报道无扩张的蛇状ACA，特别是在儿科人群中。