Brain Atrophy is extremely vague, I have heard of cerebral atrophy which is related to the brain but not brain atrophy. Usually cerebral atrophy is caused by a disease like epilepsy or multiple sclerosis. I only know this because my mother had epilepsy and my grandmother had MS. Have they said what is causing the Brain Atrophy? Sorry I can't be more helpful, I hope you can get some more answers soon