Complex sentence: MRI's taken of a PCA patient during the early stages of the disease can show brain atrophy in the right posterior lobe and occipital gyrus, this contradicts the common MRI images of AD patients, which shows atrophy in the medial temporal cortex.
Split into simpler sentences: MRI's taken of a PCA patient during the early stages of the disease can show brain atrophy in the right posterior lobe and occipital gyrus. This contradicts the common MRI images of AD patients, which shows atrophy in the medial temporal cortex.