Abstract
The relationship between migraine and cerebral infarction is complex and still remains a problem under debate. We report here 3 patients who demonstrated posterior cerebral artery infarction during migraine attack without aura, and examine the stroke mechanisms using digital subtraction angiograms. Case 1: a 21-year-old female presented with hemorrhagic infarction in the left posterior cerebral artery territory. Debris-like shadows and hyperperfusion were observed on her digital subtraction angiogram. Cryptogenic embolism and its recanalization were presumed to be the stroke mechanism. Case 2: an 18-year-old female presented with right posterior cerebral artery infarcts, and hyperperfusion was observed on her digital subtraction angiogram. We could not clarify the stroke mechanism. Case 3: a 29-year-old female presented with left posterior cerebral artery infarction. The left posterior cerebral artery demonstrated tapered stenosis, indicating arterial dissection. The stroke mechanisms of cerebral infarction occurring during migraine attacks appear to be varied, and further research is needed to clarify the nature of migraine-related strokes more precisely.
