All the following are featuring Alzheimer's disease except-
Cerebellar atrophy is seen in subcortical dementia, therefore, it is not a feature of Alzheimer's disease as it is a cortical type of dementia.

Pathology in Alzheimer's disease

Gross:- Atrophy of gyri, widening of sulci, enlarged ventricles.
Microscopy :- Senile plaque, neurofibrillary tangles, neuronal loss, synaptic loss, granulovascular degeneration.
Cerebellar atrophy
Common in 5th and 6th decade
Atrophied gyri and widened sulci
Progressive dementia