and high ANA and RNP results with OCB in CSF and serum
. Have been tested like a rabbit (blood
tests, CSF LP procedure, MRI, MRA, EEG, sonogram of heart and stress test, sonogram of. Carotid arteries, veins of my legs, MRI of my entire back. As long as the number of OCB in the CSF and serum are the same, your only antibody high is RNP, and MRI is negative for MS, then it is not MS...most likely it will be related to a connective tissue disorder or vasculitis or else.