Subclavian Steal Syndrome from the Ipsilateral Vertebral Artery
Osman Kizilkilica,
Levent Oguzkurta,
Fahri Tercana,
Ozlem Yalcina,
Meliha Tanb and
Tulin Yildirima
a Department of Radiology, Baskent University Adana Teaching and Medical Research Center, Yuregr-Adana, Turkey
b Department of Neurology, Baskent University Adana Teaching and Medical Research Center, Yuregr-Adana, Turkey

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FIG 1. Case 1, 65-year-old man with SS from the ipsilateral VA and VA origin from the aortic arch.
A, Arcus aortogram shows the arch that originated from the left VA, occlusion of the left SCA, and collateral filling from cervical collaterals.
B, Selective angiogram of the left VA demonstrates SS from the ipsilateral VA.
C, Postoperative left SCA injection reveals good recanalization and filling.
D, Postoperative left VA angiogram shows lack of collateral filling of the left SCA.
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FIG 2. Case 2, 60-year-old man with SS from the ipsilateral VA originating from the very proximal segment of the SCA.
A and B, Selective left SCA angiograms show a proximally originated left VA with 70% stenosis at the origin, occlusion of the left SCA, and collateral filling from the ipsilateral VA.
C, Postoperative selective left subclavian angiogram demonstrates good recanalization of the left SCA and no residual stenosis at the left VA origin.
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