Abstract
The anterior choroidal artery supplies important cerebral structures. One important variation of this vessel is duplication. However, little is reported on this anatomical variant and moreover, the prevalence of such a finding varies widely. Therefore, here, we review the literature regarding duplicated anterior choroidal arteries. Clinicians reviewing imaging of the brain, interventionalists, or neurosurgerons should be knowledgeable of variations of the anterior choroidal artery, including its duplication. A better understanding of this anatomy and embryology can improve diagnoses and patient outcomes following interventional or open neurosurgical techniques.
Highlights
BackgroundThe human brain receives a complex vascular supply
The anterior choroidal artery (AChA) pose concerns for neurosurgeons because of their tendency to develop aneurysms and potential to exhibit complex anatomical variations, including course, size, segments, branching patterns and brain regions supplied by these vessels [3,4,5,6,7]
The aim of this paper is to review surgical anatomy, embryology, anatomical variations, pathology of the AChA and its duplication
Summary
The human brain receives a complex vascular supply. The primary contributors to the anterior circulation of the brain are the internal carotid arteries (ICA) and their corresponding branches [1,2]. The AChAs serve several vital structures in the brain responsible for vision and motor function They branch from the ICA and commonly originate distal to the PCom. The AChAs pose concerns for neurosurgeons because of their tendency to develop aneurysms and potential to exhibit complex anatomical variations, including course, size, segments, branching patterns and brain regions supplied by these vessels [3,4,5,6,7]. Malis et al [10], Wilkins et al [11], and Yaşargil et al [12,13] make note that the AChA and perforating branches may be found in the surgical area of sphenoid ridge tumors, pituitary adenomas, sellar and parasellar tumors, and anterior circulating and basilar tip aneurysms [5] Due to their role in supplying vital structures in the brain, the integrity of the AChAs and their branches is important. The prevalence of true duplications might be much less that currently reported in the literature
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