Answer

Answer 14-7. There are many supportive tests for MS (none is perfect). MRI shows T2 and flair hyperintensities in periventricular distribution in well over 90% of patients. Some of these lesions may be enhancing (if they happened in the last 3 months). CSF shows oligoclonal bands and elevated IgG synthesis in over 80% of patients. Evoked potentials that may show problems with sensory systems that are not known from clinical exam. However, none of these (except serial MRIs) can show whether lesions are separated in space and time.