My husband is 54 years old. His Father has Alzheimer'sand his fathers father was diagnosed with dementia. My husband has the following symptoms. Recently the neurologist ordered an MRI on my husbands brain. they said it came back wtih significant differences since the last one he had 4 years ago. and then they ordered a spinal tap. the person that was doing the spinal said that there was alot of white matter on mri. My husband has had anoxic brain injury 8 yrs ago but he has been much worse (thus the reason for the MRI to begin with), he has petite seizures, he falls with no warning, he has tremors that come on out of no where, his eyesight goes blurry or dark, he sees shadows, he hears voices at times, his reasoning skills are bad and his attitude lousy. So my question is are they testing for a form of Dementia?