Keywords: هیپرگلیسمی غیر سلولی; Paroxysmal painful spasms; Central pontine myelinolysis; Nonketotic hyperglycemia; Acute-onset movement disorders; PPS; paroxysmal painful spasms; CPM; central pontine myelinolisis; EPM; extracentral pontine myelinolisis; MRI; magnetic resonance imaging.;