Proatlantal intersegmental artery: a review of normal and pathological features

Vasović, Ljiljana; Mojsilović, Marijola; Andelković, Z; Jovanović, Ivan; Arsić, Stojanka; Vlajković, Slobodan; Milenković, Zoran

doi:10.1007/s00381-008-0765-7

Cited by 46 publications

(24 citation statements)

References 54 publications

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“…Some vascular variations have been described coexisting with the PIA. Agenesis or hypoplasia of one VA is observed in 50% of patients with persistent PIA [10][11][12] . Absence of bilateral external carotid arteries with type I PIA has been reported by Basekim et al 1 .…”

Section: Discussionmentioning

confidence: 99%

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Incidental Finding of a Proatlantal Intersegmental Artery

Dönmez¹,

Kahriman

Serifov³

et al. 2011

Neuroradiol J

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We describe the case of a 70-year-old woman who had a left proatlantal intersegmental artery disclosed during carotid artery angiography with the findings of carotid-basilar anastomosis which originated from the petrous segment of the ICA and was filling the horizontal segment of the vertebral artery. Awareness of this vascular variation can prevent morbidity and mortality associated with carotid ligation or carotid endarterectomy, especially when an incomplete circle of Willis is present.

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Section: Discussionmentioning

confidence: 99%

“…It never runs into the cervical canal. It joins the vertebral artery at the V3 junction in the sub-occipital area before penetrating the foramen magnum 9,10 . Type II PIA (38%) originates from the external carotid shortly after its origin.…”

Section: Discussionmentioning

confidence: 99%

Incidental Finding of a Proatlantal Intersegmental Artery

Dönmez¹,

Kahriman

Serifov³

et al. 2011

Neuroradiol J

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“…This plexus is initially supplied by three transient carotid-basilar anastomoses (trigeminal, optic, and hypoglossal arteries) and by the cervical intersegmental arteries between the hindbrain vascular plexus and anterior carotid circulation (Vasovic et al 2009). The carotid-basilar anastomoses involute concomitantly with the development of the PCoA between the 30th and 40th days of fetal life, while the first cervical intersegmental artery (the proatlantal intersegmental artery) participates in the formation of the VA.…”

Section: Discussionmentioning

confidence: 99%

Persistent hypoglossal artery with hypoplasia of the vertebral and posterior communicating arteries

et al. 2009

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We observed a rare case of the right persistent hypoglossal artery (PHA) in the posterior cranial fossa of a deceased 74-year-old Japanese man who did not have any clinical manifestations related to this anomaly when alive. The large-sized PHA originating from the cervical internal carotid artery passed through the hypoglossal canal together with the hypoglossal nerve and reached the posterior cranial fossa to anastomose the basilar artery. In addition, the ipsilateral vertebral artery and bilateral posterior communicating arteries were hypoplastic. Here, we discuss the developmental mechanisms underlying the formation of the PHA and the spectrum of diseases related to its presence.

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“…Carotid-vertebrobasilar anastomoses (primitive trigeminal, otic, hypoglossal and proatlantal intersegmental arteries) are embryonic presegmental arteries supplying the primitive vertebrobasilar system from the primitive ICA [12][13][14][15]. The origin and termination of the right PCoA indicates the most cranial of the embryonic vessels connecting the anterior and posterior cerebral circulations.…”

Section: Discussionmentioning

confidence: 99%