I found this paper interesting in that we have always heard the rate of depression/suicide is much higher in MS Patients.
"Changes in mood, personality, and cognitive functioning
are among the most disabling and distressing symptoms for
individuals diagnosed with MS, yet patients and their families
receive little understanding or help with these problems.
When behavioural changes are addressed, the changes are
described simply as emotional reaction to the life situation or
poor adjustment to chronic illness. Recent research, however,
indicates that there are additional risk factors to explain
the high incidence of psychiatric conditions and psychological
problems. These include side effects of steroid use for
management of exacerbations of symptoms and increasing
evidence of an organic explanation involving lesions in specific
areas of the brain"
http://ww1.cpa-apc.org:8080/publications/archives/pdf/1996/sep/rodgers.pdf