Abstract
Objective To investigate the clinical features and neuroimaging features of myelinolysis in central pontine and extrapontine. Methods The clinical features of 5 patients with central pontine myelinolysis and 2 cases with extrapontine myelinolysis were analyzed,including the inducing factors,clinicalmanifestations,cranial MRI,treatrnent and prognosis. Results All the seven patients had the history of rapidity of correcting chronic hyponatraemia, The common clinicalrranifestations included change of consciousness, dysphasia,dysphagia tetraplegia etc. The MRI of 5 cases of central pontine myelinolysis showed pontine parts of the symmetry T1-weighed low signal lesions,T2-weighed high signal lesions,all showed typical change like Bat Wing. Two cases of extrapontine myelinolysis respectively in the hypothalamus、basical ganglia region of summetry T1-weighed low signal,T2-weighed high signal lesions.Five examples were basically cured. Conclusions The incidence of myelinolysis is related to hyponatremia and rapidity of correcting chronic hyponatraemia,and avoiding the rapidity of correcting chronic hyponatraemia is the key point for preventing its happening. Key words: Central pontine myelinolysi; Extrapontine myelinolysi; Clinical analysi; Neuroimaging features
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