A bilateral fetal origin of the posterior cerebral artery coexisting with an absent A1 segment of the anterior cerebral artery.

IF 1.2 4区医学 Q3 ANATOMY & MORPHOLOGY Folia morphologica Pub Date : 2024-11-22 DOI:10.5603/fm.103246

George Triantafyllou, Savvas Melissanidis, Łukasz Olewnik, Panagiotis Papanagiotou, George Tsakotos, Nicol Zielinska, Katerina Vassiou, Maria Piagkou

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Abstract

Background: The cerebral arterial circle variants are well-described due to their clinical significance for neurosurgeons and neuroradiologists.

Materials and methods: This magnetic resonance angiography (MRA) report describes the unusual coexistence of three cerebral variants incidentally identifiedin a 44-year-old female patient.

Results: The right-sided first segment (A1) of the anterior cerebral artery (ACA) was absent, and both the posterior cerebral arteries (PCAs) originated from the internal carotid arteries (ICAs). Thus, the unilateral A1 segment absence coexisted with a bilateral PCA of fetal origin. These variants' coexistence significantly disrupts the patient's primary collateral pathway.

Conclusions: The clinical significance and consequences of such variants after stroke or transient ischemic attack cannot be overstated, underscoring the importance of the current imaging findings in understanding and managing these conditions.

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双侧胎儿大脑后动脉起源与大脑前动脉 A1 段缺失并存。

背景：脑动脉环变异因其对神经外科医生和神经放射科医生的临床意义而被详细描述：这篇磁共振血管造影（MRA）报告描述了在一名 44 岁女性患者中偶然发现的三种大脑变异的不寻常共存：结果：大脑前动脉（ACA）右侧第一节段（A1）缺失，大脑后动脉（PCA）均起源于颈内动脉（ICA）。因此，单侧 A1 段缺失与胎儿来源的双侧 PCA 同时存在。这些变异的同时存在严重破坏了患者的主要侧支通路：这些变异在中风或短暂性脑缺血发作后的临床意义和后果无论怎样强调都不为过，这也凸显了目前的成像发现在理解和处理这些病症方面的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Folia morphologica ANATOMY & MORPHOLOGY-

CiteScore

2.40

自引率

0.00%

发文量

218

审稿时长

6-12 weeks

期刊介绍： "Folia Morphologica" is an official journal of the Polish Anatomical Society (a Constituent Member of European Federation for Experimental Morphology - EFEM). It contains original articles and reviews on morphology in the broadest sense (descriptive, experimental, and methodological). Papers dealing with practical application of morphological research to clinical problems may also be considered. Full-length papers as well as short research notes can be submitted. Descriptive papers dealing with non-mammals, cannot be accepted for publication with some exception.