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Migraine aura presenting as dysphasia with global cognitive dysfunction and abnormalities on perfusion CT

The prevalence of migraine with aura in adults is 3–5% (1). It is defined as attacks of focal neurological deficits that develop gradually, mostly within 5–20min, and usually affect the visual system, sensation or language and are often followed by headache within 1 h. The focal deficits normally resolve in 1 h. Except for aphasia, cognitive dysfunction is not considered to be a regular migraine aura phenomenon. We present a case with global cognitive dysfunction accompanied by modest hypoperfusion of the left hemisphere, attributed to a migraine aura.