Figure 1
(A) Normal waveforms and velocity in the right common carotid artery (CCA); (B) small left CCA suggesting abnormal development; (C) proximal left internal carotid artery displaying “flame-like” appearance.
Figure 2
Absent left internal carotid artery with good cross-filling via contralateral anterior cerebral artery.
Figure 3
Transcranial Doppler image of the left and right middle cerebral arteries (MCA). Unexpectedly normal left MCA waveform. ICA: internal carotid artery; TCD: transcranial Doppler
Figure 4
(A, B) Ultrasound and digital subtraction angiography demonstrating a tapered, “flame-like” left internal carotid artery. (C) Illustration of the anatomical configuration.
Figure 5
Computed tomography demonstrating absent carotid canal at the base of the skull on the left.