Prognosis
Persons with a large injury to the left perisylvian areas of the brain, often initially show signs of global aphasia in the first 1–2 days due to brain swelling (cerebral edema). With some recovery, impairment presentation may progress into expressive aphasia (most commonly) or receptive aphasia. Improvement may occur in one or both areas (expressive and receptive language) over time. However, studies show that spontaneous improvement, if it happens, occurs within six months, but complete recovery is rare.
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