Increased intracranial pressure in a case of pediatric multiple sclerosis.

A 15-year-old girl presented to our emergency department with dizziness, anorexia, nausea, and malaise. Clinical examination and magnetic resonance imaging studies showed characteristic features of multiple sclerosis. Surprisingly, a diagnostic lumbar puncture showed significant intracranial hypertension in addition to numerous oligoclonal bands, elevated immunoglobulin G index and immunoglobulin G/albumin ratio in the cerebrospinal fluid. It is proposed that a large burden of active demyelinating disease may cause increased intracranial pressure, thus providing an additional sound rationale for prompt therapeutic administration of intravenous high-dose steroids.