There is a condition called NPH that mimics Alzheimer's. Can be found with an MRI. Worth checking our if you have a loved one with problems. NPH is fluid in the brain and there is successful treatment for it.
The diagnostic tests for a patient suspected of having any dementia include a CT or MRI of the brain. Normal-Pressure Hydrocephalus(NPH) should be apparent to the radiologist, neurologist or neurosurgeon considering placement of a shunt.