“…The evaluation in ND can identify signs that suggest alteration of the nervous system and can indicate the most appropriate complementary examinations to stablish an accurate diagnosis. Among the complementary exams there are: i) imaging studies [10][11][12][13] (such as Magnetic Resonance Imaging, Computed Tomography, positron emission tomography, Ultrasonography and Doppler); ii) physiological studies (such as neurophysiological examinations [14]: electroencephalogram, electroneuromyography, evoked potentials); iii) neuropsychological tests (tests that involve interviews, questionnaire applications and specific tests, with the aim of testing areas such as attention, memory, language, reasoning, and learning); iv) analysis of cerebrospinal fluid; v) blood tests (including genetic tests, research of therapeutic levels of drugs in the body, tests for specific antibodies, and general tests for numerous other diseases that can cause neurological symptoms); and vi) biopsies (of nervous tissue, skin, or muscles). The rapid and accurate diagnosis of ND allows for early treatment, improving the quality of life and the prognosis of the disease, often being the difference between life and death [15].…”