Types of Multiple Sclerosis


Types of MS

What is clinically isolated syndrome?

Also known as CIS, clinically isolated syndrome is a first clinical episode caused by damage to the myelin and lasts for at least 24 hours. For example, a person might report a vision problem and be diagnosed with optic neuritis caused by a single lesion. People with CIS cannot be diagnosed as having MS, since they cannot meet enough of the criteria, and they may or may not go on to develop MS. Some people who have CIS begin therapy right away, while others wait, following conversations with their neurologists. There is no right or wrong answer, since every case is different. 3

1. Four Disease Courses of MS. National Multiple Sclerosis Society Web site. http://www.nationalmssociety.org/about-multiple-sclerosis/what-we-know-about-ms/what-is-ms/four-disease-courses-of-ms/index.aspx. Accessed on 16 February 2011.
2. What is Multiple Sclerosis? National Multiple Sclerosis Society Web site. http://www.nationalmssociety.org/about-multiple-sclerosis/what-we-know-about-ms/what-is-ms/index.aspx. Accessed on 16 February 2011.
3. A to Z Cause of MS Clinically isolated syndrome. MS Trust Web site. http://www.mstrust.org.uk/atoz/cis.jsp. Accessed on 16 February 2011.