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Representative coronal T1-weighted MRI sections of the brain of a patient with semantic dementia (clinical disease duration 3 years). The sections show key structures at the level of the temporal pole (TP), anterior temporal lobe (aTL) and posterior temporal lobe (pTL); the left hemisphere is shown on the left in all sections. The sections show a characteristic profile of asymmetric focal atrophy most markedly affecting the anterior and inferior temporal lobes
