sentence: The transentorhinal region, a narrow area of the medial temporal lobe is first affected by Alzheimer's disease, it then spreads to the area next to it in the temporal lobe; the entorhinal region (or entorhinal cortex).
modified: The transentorhinal region, a narrow area of the medial temporal lobe is first affected by Alzheimer's disease, it then spreads to the area next to it in the temporal lobe; the entorhinal region (or entorhinal cortex).