Abstract

The cognitive dysfunction in Multiple Sclerosis is classically defined as deficits in executive function, processing
speed and memory. This pattern has been termed “subcorticaldy sfunction”. However, a growing body of literature suggests that there is cortical disruption in patients with Multiple Sclerosis and higher cortical dysfunction may manifest as symptoms. Here is presented two patients with Multiple Sclerosis who developed symptoms suggestive of Corticobasal syndrome, a disorder of higher cortical dysfunction due to a number of different pathologic substrates.