PMC4357484_01
Coronal T2-weighted MRI shows a lack of normal signal void of the left internal carotid artery.
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ICA was not detectable (Figure 1). Intracranial MR angiography revealed absence of the left ICA (Figure 2).
Intracranial MR angiography reveals absence of the left internal carotid artery. RVA = right vertebral artery, LVA = left vertebral artery, BA = basilar artery, RICA = right internal carotid artery, RMCA = right middle cerebral artery, LMCA = left middle cerebral artery, RACA = right anterior cerebral artery, LACA = left anterior cerebral artery.
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ICA was not detectable (Figure 1). Intracranial MR angiography revealed absence of the left ICA (Figure 2).
Multi-slice CT angiography of the supraaortic arteries displays a hypoplastic left common carotid artery and agenesis of the left internal carotid artery. RCCA = right common carotid artery, LCCA = left common carotid artery.
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Multi-detector CT angiography of the supraaortic arteries revealed hypoplastic left common carotid artery and left vertebral artery (Figure 3).
Sagittal reconstruction of the cervical spine exhibits fusion of C3-C4 and C7-Th1 vertebral bodies.
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On the same examination we detected fusion of C3-C4 and C7-Th1 vertebral bodies (Figure 4), which was highly suggestive of type II KFS.