Hello MRI findings suggests chronic microvascular ischemic changes( due to compromised blood supply) with old lacunar infarct involving left caudal nucleus and basal ganglia..These are generally due to involvement of small blood vessels. It is generally due to condiotions like hypertension,diabetes mellitus,altered lipid profile etc. So,you may need clinical correlation and screening for these conditions. These are not very serious findings and it only need treatment of underlying cause. There are also age related cerebral cortical atrophy.These are expected findings in all persons with aging.This is a normal finding in your age. Get well soon. Take Care Dr.Indu Bhushan