Anterior choroidal artery

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Artery: Anterior choroidal artery
Latin	arteria choroidea anterior
Gray's	subject #147 574
Source	internal carotid artery

The anterior choroidal artery originates from the internal carotid artery, though it also rarely arises from the middle cerebral artery.

Structures supplied

The anterior choroidal artery serves structures in the telencephalon, diencephalon, and mesencephalon:

• choroid plexus of the lateral ventricle and third ventricle
• optic chiasm and optic tract
• internal capsule
• lateral geniculate body
• globus pallidus
• tail of the caudate nucleus
• hippocampus
• amygdala
• substantia nigra
• red nucleus
• crus cerebri

Disorders

The full extent of the damage caused by occlusion of the anterior choroidal artery is not known. However, studies^[which?] show that the interruption of blood flow from this vessel can result in hemiplegia on the contralateral (opposite) side of the body, contralateral hemi-hypoesthesia, and homonymous hemianopsia.

These symptoms are thought to arise from ischemic damage to the posterior limb of the internal capsule, thalamus, and optic chiasm/optic tract.

References

• "Artery, anterior choroidal." Stedman's Medical Dictionary, 27th ed. (2000). ISBN 0-683-40007-X
• Victor, Maurice and Allan H. Ropper. Adams and Victor's Principles of Neurology. (2001). ISBN 0-07-067497-3
• Helgason C, Caplan LR. Anterior choroidal artery-territory infarction: Report of cases and review. Arch Neurol 1986;43:681-686.

See also

• Posterior choroidal branches
• Plexal point

External links

• MedEd at Loyola Neuro/neurovasc/navigation/achr.htm
• Roche Lexicon - illustrated navigator, at Elsevier 13048.000-1
• Blood supply at neuropat.dote.hu