Hello! I read the question and understand your concern. A multiple sclerosis is very exceptional to be diagnosed at this age. I don t know the MRI pattern, but a stroke in a diabetic patient may be misdiagnosed as multiple sclerosis in MRI because of lacunar strokes and periventricular post ischaemic lesions. The difference may be done by a contrast enhancement which is consists with multiple sclerosis. The fact that the motor deficit is persistent is more consistent with stroke than multiple sclerosis. I would recommend a lumbar puncture with oligoclonal bands for diagnosis multiple sclerosis though not always it results positive. I would recommend him to keep taking aspirins and a statine as hypolipemiant to prevent a possible stroke. The best control of diabetes would be very helpful. Thank you for using HCM! Best wishes Dr. Abaz Quka