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AJNR - American Journal of Neuroradiology

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Proatlantal Intersegmental Arteries of External Carotid Artery Origin Associated with Galen’s Vein Malformation

Sukalyan Purkayastha, Arun Kumar Gupta, Ravi Varma and T.R. Kapilamoorthy

From the Department of Radiology, Sree Chitra Tirunal Institute of Medical Sciences and Technology, Trivandrum, Kerala, India

View larger version (30K): [in a new window]   FIG 1. Schematic diagram of the lateral and anteroposterior views show the origin of the proatlantal artery from the external carotid artery at the second vertebral body level. Occipital artery origin from proatlantal artery is seen.

View larger version (133K): [in a new window]   FIG 2. Right vertebral artery injection lateral view angiogram shows filling of the Galen’s vein fistula and the falcine sinus.

View larger version (132K): [in a new window]   FIG 3. Right internal carotid artery injection lateral view angiogram shows the filling of the fistula through the posterior communicating artery.

View larger version (149K): [in a new window]   FIG 4. Left internal carotid artery injection lateral view angiogram shows the filling of the fistula through the posterior communicating artery.

View larger version (109K): [in a new window]   FIG 5. Left vertebral artery injection lateral view angiogram shows the fistula filling from the thalamoperforator arteries.

View larger version (149K): [in a new window]   FIG 6. Right external carotid artery injection lateral view angiogram shows the proatlantal artery.

View larger version (149K): [in a new window]   FIG 7. Right external artery injection anteroposterior view angiogram shows the opacification of the proatlantal artery of the right side.

View larger version (147K): [in a new window]   FIG 8. Left external carotid artery injection lateral view angiogram shows the filling of the vertebral artery via the left proatlantal artery.

View larger version (98K): [in a new window]   FIG 9. Left external carotid artery injection anteroposterior view angiogram shows the proatlantal artery and the opacification of the vertebral artery.

View larger version (127K): [in a new window]   FIG 10. Right common carotid artery injection angiogram shows the origin of the proatlantal artery and the filling of the vertebral artery (case 2).