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A, CPR image of the AKA obtained from IACTA. A hairpin curved vessel ascends to the midsagittal surface of the spinal cord, but continuity with the left 11th intercostal artery (arrow) is disturbed by a vertebral pedicle (arrowhead). B, Selective angiography of the left 11th intercostal artery demonstrates the AKA originating from this location.
