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Figure 3: Catheter cerebral angiogram (internal carotid artery injection) showing tapering stenosis of the internal carotid artery (rat tail sign) suggestive of ICA dissection; in contrast to most arteriopathies seen in childhood AIS this affects the cervical ICA.

Figure 3: Catheter cerebral angiogram (internal carotid artery injection) showing tapering stenosis of the internal carotid artery (rat tail sign) suggestive of ICA dissection; in contrast to most arteriopathies seen in childhood AIS this affects the cervical ICA.