Revised Diagnostic Criteria (2010)
| Clinical Presentation | Additional Data Needed |
|---|---|
| * 2 or more attacks (relapses) * 2 or more objective clinical lesions |
None; clinical evidence will suffice (additional evidence desirable but must be consistent with MS) |
| * 2 or more attacks * 1 objective clinical lesion |
Dissemination in space, demonstrated by: * MRI * or a positive CSF and 2 or more MRI lesions consistent with MS * or further clinical attack involving different site. New criteria: Dissemination in Space (DIS) can be demonstrated by the presence of 1 or more T2 lesions in at least 2 of 4 of the following areas of the CNS: Periventricular, Juxtacortical, Infratentorial, or Spinal Cord. |
| * 1 attack * 2 or more objective clinical lesions |
Dissemination in time (DIT), demonstrated by: * MRI * or second clinical attack New criteria: No longer a need to have separate MRIs run; Dissemination in time, demonstrated by: Simultaneous presence of asymptomatic gadolinium-enhancing and nonenhancing lesions at any time; or A new T2 and/or gadolinium-enhancing lesion(s) on follow-up MRI, irrespective of its timing with reference to a baseline scan; or Await a second clinical attack. |
| * 1 attack * 1 objective clinical lesion (clinically isolated syndrome) |
New criteria: Dissemination in space and time, demonstrated by:
For DIS: 1 or more T2 lesion in at least 2 of 4 MS-typical regions of the CNS (periventricular, juxtacortical, infratentorial, or spinal cord); or Await a second clinical attack implicating a different CNS site; and For DIT: Simultaneous presence of asymptomatic gadolinium-enhancing and nonenhancing lesions at any time; or A new T2 and/or gadolinium-enhancing lesion(s) on follow-up MRI, irrespective of its timing with reference to a baseline scan; or Await a second clinical attack. |
| Insidious neurological progression suggestive of MS (primary progressive MS) |
New criteria: One year of disease progression (retrospectively or prospectively determined) and
two or three of the following: |
Read more about this topic: McDonald Criteria
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