Q: 33-year-old female is admitted to ICU with dysarthria and possible stroke. Neurology service made a diagnosis of crossed aura. What is crossed aura?
Answer: Crossed aura is associated with migraine and can be very deceiving. It is also known as language aura. In most people i.e. right-handed individuals, language is lateralized to the left hemisphere. If there is a lesion in the right cerebral hemisphere, it may manifest as wording difficulties, dysphasia or paraphasic errors.
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Reference:
Martins IP. Crossed aphasia during migraine aura: transcallosal spreading depression?. J Neurol Neurosurg Psychiatry. 2007;78(5):544–545.
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