OnlyJoking...
You asked about the diagnosis of MS - here is a small factual explanation for you - the MRI Scan is how they identify the lesions which are referred to:
MS is a disease of the central nervous system. The central nervous system consists of the brain, spinal cord, and the optic nerves. Surrounding and protecting the nerve fibers (or axons) of the central nervous system is a fatty tissue called myelin, which helps nerve fibers conduct electrical impulses.
In MS, myelin is lost in multiple areas, leaving scar tissue called sclerosis. These damaged areas are also known as plaques or lesions. Sometimes the underlying nerve fiber (or axon) is also damaged or broken.
When myelin or the nerve fiber is destroyed or damaged, the ability of the nerves to conduct electrical impulses to and from the brain is disrupted, and this produces the various symptoms of MS.
Now - on a positive note - take a look at this site which is the blog of a woman with MS and who has not let it stop her living life to the full - it is a great inspiration and just shows that the outlook doesn't always need to be bleak ...
living
Hope things work out well for you and your husband...