<prompt> Dawson Fingers are feature ofParkinsonismMultiple SclerosisProgressive supra nuclear palsyCJD  <response>: Multiple sclerosis :- - is mc immune mediated inflammatory demyelinating disease of CNS - autoimmune destruction of myelin formed - Dawson fingers - are radiological feature of Multiple sclerosis - are periventricular white matter hyperintensities perpendicular to ventricles - involvement of calloso-septal interface - open ring horseshoe enhancement is suggestive of demyelination 