Diffuse cerebral atrophy is evident with a predilection of the parietal lobes and perisylvian regions. There is mild atrophy of the mesial temporalstructures. The differential diagnosis is between and the posterior variantof Alzheimer's disease and a frontotemporal dementia.Tiny focus of susceptibility artefact in the inferolateral right frontallobe may be secondary to amyloid angiography. Minimal changes of small vessel chronic ischaemic disease.