articleNeurologyFeb 13, 2026GREEN OA

Performance of the 2024 McDonald Criteria in Patients Under Evaluation for Suspected Multiple Sclerosis

Multiple Sclerosis Society · UCL Biomedical Research Centre · +5 more institutions

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Abstract

Methods

We retrospectively identified patients referred with clinical and/or radiologic suspicion for MS between January and December 2024. All patients had a minimum diagnostic evaluation with brain and spinal cord MRI. The 2017 McDonald criteria were applied prospectively, and the 2024 McDonald criteria were applied retrospectively after the initial diagnostic workup and at last follow-up. We investigated (1) the number of patients diagnosed with MS using the 2017 McDonald criteria or the 2024 McDonald criteria, and (2) the diagnostic performance of the 2024 McDonald criteria when applied during the initial diagnostic workup, with an MS diagnosis using the 2017 McDonald criteria as the reference-standard.

Results

50 years).

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