anterior choroidal artery


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an·te·ri·or cho·roi·dal ar·ter·y

[TA]
origin, internal carotid or (rarely) middle cerebral artery; distribution, named branches [TA] to choroid plexus of lateral and third ventricles, optic chiasm and tract, internal capsule (genu, posterior limb, and retrolentiform limb), lateral geniculate body, globus pallidus, tail of caudate nucleus, hippocampus, amygdaloid body, tuber cinereuum, hypothalamic nuclei, thalamic nuclei, substantia nigra, red nucleus, and crus cerebri.
Synonym(s): arteria choroidea anterior [TA]
References in periodicals archive ?
The main branches of the internal carotid artery system in the brain are the ophthalmic artery, the anterior cerebral artery, the middle cerebral artery, the anterior choroidal artery, and the posterior communicating artery.
The V7 portion of the ICA also bifurcates into the anterior choroidal artery and the posterior communicating artery [9, 29].
In addition, it also receives contribution from the posterior communicating artery and anterior choroidal artery [8].
Four were on the left side of the anterior circulation (Figures 1 and 2): one at the bifurcation of the left internal carotid artery (ICA) and anterior choroidal artery (AN1), 2 adjacent ones in the horizontal part of the left middle cerebral artery (MCA) (AN2 and AN3), and one at the bifurcation of the left MCA (AN4).
A 61-year-old male presented with 2 unruptured aneurysms in the right anterior circulation (Table 1, Figures 1 and 4): one at the bifurcation of the left ICA and anterior choroidal artery (AN7) and one at the bifurcation of the MCA (AN8).
Angle formation between internal carotid artery and anterior choroidal artery (C7-AChA).
Digital subtraction cerebral angiography (DSA) showed multiple vascular lesions, including an obvious saccular aneurysm on the left anterior choroidal artery. After surgical clipping, rebleeding was noted, and repeat DSA demonstrated that the bleeding site was on the right posterior cerebral artery.
Digital subtraction cerebral angiography, performed an hour later, revealed a saccular aneurysm on the left anterior choroidal artery (AChA) and infundibular morphology of both posterior communicating arteries (PCoAs) [Figure 2].{Figure 1}{Figure 2}
Microsurgical anatomy of the anterior choroidal artery. Surg Neurol 12:171-187,1979
The anterior and meninges.[8,10] The external carotid artery can also serve as collateral circulation for an occluded internal carotid artery.[8] The internal carotid artery continues through the neck and enters the skull before branching into the main arteries of the anterior cerebral circulation.[8] The bilateral internal carotid arteries each supply two-fifths of the cerebral blood flow.[8] The main branches of the internal carotid artery include: the ophthalmic artery, anterior choroidal artery, the posterior communicating artery, the anterior cerebral artery and the middle cerebral artery.[8]

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