Hypersomnia and Bilateral Horner's as a Initial Presentation in Multiple Sclerosis.

Multiple Sclerosis is characterized by recurrent neurological deficiet attributable to white matter tracts, at least initially. Deep grey matter nuclei can be rarely involved in early disease as seen in MRI studies. Clinical manifestations attributable to involvement of these grey matter nuclei are extremely rare especially in early disease and is usually considered as a red flag for the diagnosis of multiple sclerosis. We report a case of a young girl presenting as a clinically isolated syndrome with bilateral Horner's and hypersomnia with MRI evidence of hypothalamic involvement.