Despite the now significant contribution of magnetic resonance imaging, the accurate and timely diagnosis of multiple sclerosis (MS) is still clinically challenging. Al Hussona et al., with their case series, highlight the complexities of attributing paroxysmal, and in particular cortical, symptoms such as epileptic seizures to inflammatory demyelinating lesions, and establishing a diagnosis of MS based on them. In such circumstances an MS diagnosis is likely to be more tentative than for more typical MS presentations, and treatment choices should be weighed accordingly.
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