Dawson fingers

Dr Henry Knipe and Eytan Raz et al.

Dawson fingers are a radiographic feature depicting demyelinating plaques through the corpus callosum, arranged at right angles along medullary veins (callososeptal location). They are a relatively specific sign for multiple sclerosis (MS), which presents as T2 hyperintensities.

History and etymology

Dawson fingers are named after James Walker Dawson who described the phenomenon in an article in 1916 2, although the term "Dawson fingers" was brought forward by Charles Lumsden.

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