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PT  - JOURNAL ARTICLE
AU  - Basekim, C. Cinar
AU  - Silit, Emir
AU  - Mutlu, Hakan
AU  - Pekkafali, M. Zekai
AU  - Ozturk, Ersin
AU  - Kizilkaya, Esref
TI  - Type I Proatlantal Artery with Bilateral Absence of the External Carotid Arteries
DP  - 2004 Oct 01
TA  - American Journal of Neuroradiology
PG  - 1619--1621
VI  - 25
IP  - 9
4099  - http://www.ajnr.org/content/25/9/1619.short
4100  - http://www.ajnr.org/content/25/9/1619.full
SO  - Am. J. Neuroradiol.2004 Oct 01; 25
AB  - Summary: 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 angiography revealed a large anastomotic vessel between the right internal carotid and vertebral artery. It was thought to be type I proatlantal artery. Furthermore, the external carotid arteries were bilaterally absent. Although each vascular anomaly mentioned above is rare, it even more rare for these variations to occur simultaneously.