posterior communicating artery

(redirected from Posterior communicating)
Also found in: Acronyms.

pos·te·ri·or com·mu·ni·cat·ing ar·ter·y

[TA]
origin, internal carotid; distribution, optic tract, crus cerebri, interpeduncular region, and hippocampal gyrus; anastomoses, with posterior cerebral to form a portion of the cerebral arterial circle (circle of Willis).

pos·te·ri·or com·mu·ni·cat·ing ar·te·ry

(pos-tēr'ē-ŏr kŏ-myū'ni-kā'ting ahr'tĕr-ē) [TA]
Origin, internal carotid; distribution, optic tract, crus cerebri, interpeduncular region, and hippocampal gyrus; anastomoses with posterior cerebral to form the cerebral arterial circle (circle of Willis).
Synonym(s): arteria communicans posterior.

posterior communicating artery

An artery interconnecting the posterior cerebral and middle cerebral arteries at the base of the brain.
See: brain (Major arteries of the brain) and circle of Willis for illus.
See also: artery
References in periodicals archive ?
Posterior communicating artery hypoplasia as a risk factor for acute ischemic stroke in the absence of carotid artery occlusion.
And, it can expose ipsilateral tractus opticus, internal carotid artery, posterior communicating artery, anterior choroidal artery, thalamus arteriae perforantes, posterior cerebral artery, and pituitary stalk.
Caption: Figure 2: (a) Three-dimensional digital subtraction angiography shows left posterior communicating artery aneurysm (arrow) and left persistent trigeminal artery (PTA) aneurysm (arrowhead).
Acute subdural hematoma from ruptured posterior communicating artery aneurysm.
3% of those were found to have normal posterior communicating artery.
2 and 3) confirmed the presence of a large 2 x 1 cm aneurysm arising from the posterior communicating artery and a smaller aneurysm arising from the middle cerebral artery.
8%) followed by posterior communicating (PCOM) (17.
The primary routes of collateral circulation are the Willisian channels (anterior communicating artery, posterior communicating artery, and the ophthalmic via the external carotid artery).
In this sub-arachnoid space, the 3rd nerves pass either side of the midline basilar artery and between two of its major branches--the superior cerebellar and posterior cerebral arteries then just below and lateral to the posterior communicating artery, a key component of the arterial Circle of Willis.
2) In utero, the embryonic trigeminal artery supplies the basilar artery before the posterior communicating and vertebral arteries develop.
She was quickly intubated for airway protection and taken for a head CT scan, which revealed a large subarachnoid and intraventricular hemorrhage, a dilated segment of the right vertebral artery with a possible blister-like aneurysm, and a large posterior communicating (PCOM) artery.
When location was examined as a risk factor, only aneurysms in the anterior communicating artery (ACoA) and posterior communicating artery (PCoA) were significantly more likely to be found among patients with ruptured aneurysms.

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