<prompt> All the following are features of Alzheimers disease except:Cerebellar atrophyCommon in 5th and 6th decadeAtrophied gyri widened sulciProgressive dementia  <response>: In Alzheimers, the disease process usually spares cerebellum. Especially neurofibrillary tangles are never seen in cerebellum. Alzheimers Ds Dementia of Alzheimer type Pathophysiological Findings: Diffuse atrophy, Flattened Coical Sulci Dilated Cerebral ventricles Primarily involve Parietal and temporal Lobes Atrophy stas In Medical Temporal Lobe EntorhinalPerirhinal Coex Hippocampus and spreads to Lateral Medial parietal Lobes, Lateral Temporal Lobes Lateral Frontal Coex 