Spontaneous internal carotid recanalization has been infrequently observed, and when it has been reported, it has most commonly occurred early after a stroke. We report a case of a patient with late spontaneous recanalization of the internal carotid artery (ICA) that occurred within 6 months to 1 year after the initial diagnosis of occlusion during the course of a stroke. This event allowed the patient to undergo a successful surgical intervention. A suggestion is made about the mechanism of this phenomenon and an implication about changes in the follow-up strategies of these patients is presented.
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