During color Doppler examination of a 41-year-old man who presented with vertigo, a right
vertebral artery could not be found. Both MR angiography and digital subtraction …

We describe a 64-year-old woman evaluated with angiography a case of persistence of a
proatlantal artery (type II) with an arteriovenous malformation associated to the posterior …

The persistent proatlantal artery is a well-described communication between the carotid and
vertebrobasilar system. However, persistence of bilateral proatlantal arteries is exceptionally …

Anomalous Communication of the External Carotid and Vertebral Arteries Page 1
Radiographic Exhibit • Anomalous Communication of the External Carotid • and Vertebral …

Proatlantal intersegmental artery with absence of bilateral vertebral arteries Page 1 J
Neurosurg 54:122-124, 1981 Proatlantal intersegmental artery with absence of bilateral …

✓ The authors describe the occurrence of proatlantal artery as an incidental angiographic
observation in a young Indian soldier. This primitive anastomotic channel is seen extending …

Persistence of both proatlantal arteries with absence of vertebral arteries Page 1 Neuroradiology
(1987) 29:304-305 Neuroradiologg © Springer-Verlag 1987 Persistence of both proatlantal …

Persistence of the proatlantal artery is a rare anomalous communication between the carotid
and vertebrobasilar system. Two types of proatlantal arteries have been described …

A case of a combined anomaly of persistent hypoglossal and proatlantal intersegmental
arteries, proved on arteriogram obtained by the insertion of a needle into the common trunk …

• A case of the proatlantal intersegmental artery (PIA) arising from the external carotid artery
(ECA) is presented. The PIA gave rise to the occipital artery, a finding which may support the …