Hi Janice, Here is a link to the NPF website that describes Multiple System Atropy (MSA). It does a better job than I can. Basically, it says that you have degeneration in the brain in other areas besides the substantia nigra (PD affected area). http://www.parkinson.org/atrophy.htm Phil Gesotti 52/dx46 ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn