Question 1493

Question contributed by Frank Gaillard ◉ ◈

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In McDonald's criteria (2017) for the diagnosis of multiple sclerosis, what is the minimum number of lesions required to satisfy dissemination in space?

1 or more lesions in 2 or more regions (i.e. minimum number of lesions 2)

1 or more lesions in 3 or more regions (i.e. minimum number of lesions 3)

1 or more lesions in 4 or more regions (i.e. minimum number of lesions 4)

2 or more lesions in 2 or more regions (i.e. minimum number of lesions 4)

2 or more lesions in 3 or more regions (i.e. minimum number of lesions 6)

2 or more lesions in 4 or more regions (i.e. minimum number of lesions 8)

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Question 1493

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Question 1493

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