Kappa Index Versus Csf Oligoclonal Bands in Diagnosis of ms and Prediction of Disease Activity

To: 1. Compare the diagnostic performance of cerebrospinal fluid kappa index to that of cerebrospinal fluid IgG oligoclonal bands in differentiating multiple sclerosis from other inflammatory and non-inflammatory neurological diseases . 2. Assess the role of kappa free light chain and oligoclonal bands in predicting disease activity (conversion from clinical isolated syndrome to multiple sclerosis)