title: PET helps uncover undiagnosed neurological syndromes.
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D009423:Nervous System Neoplasms / Q000000981:diagnostic imaging*; D010257:Paraneoplastic Syndromes / Q000000981:diagnostic imaging*; D012680:Sensitivity and Specificity; D014055:Tomography, Emission-Computed