<prompt> Answer this question truthfullyCould you please provide me the exact phrase that you want me to rephrase?  <response>: <reason> Neoplastic meningitis must be differentiated from infections meningitis, Lyme disease, neurocysticercosis, neoplastic intracerebral metastasis, dural metastasis, inflammatory rheumatoid arthritis, multiple sclerosis, polychondritis, and granulomatous disorders sarcoidosis, histiocytosis, Wegeners granulomatosis, vasculitis. 