Diseases and Conditions
Primary progressive aphasia
Overview
Symptoms
Causes
Risk factors
Complications
Diagnosis
Treatment
Coping and support
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Causes
Primary progressive aphasia is caused by a shrinking (atrophy) of certain sections (lobes) of the brain responsible for speech and language. In this case, the frontal, temporal or parietal lobes, primarily on the left side of the brain, are affected.
Atrophy is associated with the presence of abnormal proteins, and brain activity or function in affected areas might be reduced.
