An anomalous hyperplastic anterior choroidal artery associated with an unruptured internal carotid–posterior communicating artery aneurysm

Radiology Case Reports

article

Akio Nishino¹  Kousuke Mori¹  Yoshihiro Yano¹  Takashi Koyama¹  Kouichi Taniwaki¹  Toshiaki Fujita¹  Mamoru Taneda¹ 

[1] Department of Neurosurgery, Kinki Central Hospital

关键词: Anterior choroidal artery;    Cerebral aneurysm;    Hyperplasia;    Endovascular surgery;   

DOI  :  10.1016/j.radcr.2022.02.071

学科分类：生物化学工程

来源: University of Washington * Department of Radiology

【 摘 要 】

The anterior choroidal artery (AChA) injuries can result in severe neurologic deficits, so requiring careful observation to avoid inadvertent damage during neuroendovascular procedures. In this case report, we present the unusual case of an anomalous hyperplastic AChA associated with a fetal-type posterior communicating artery (PCoA), and an unruptured internal carotid artery (ICA) –PCoA aneurysm. A 54-year-old woman presented with persistent headache. Brain magnetic resonance imaging (MRI) showed an unruptured cerebral aneurysm in the right ICA, and cerebral angiography revealed a proximal fetal-type PComA and a distal anomalous hyperplastic AChA. Coil embolization was performed with no neurologic deficits and the target lesion was embolized with a total of 6 coils. An anomalous hyperplastic AchA has a lengthy course with numerous choroidal and perforating branches, and therefore, an abundant perfusion region. Thorough knowledge of the development and anatomy of anomalous arteries is important for safely performing endovascular procedures without causing any ischemic complications.

【 授权许可】

CC BY|CC BY-NC-ND