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Central pontine myelinolysis.
1Department of Neurology, Medical College of Ohio, 3120 Glendale Ave, Toledo, OH 43614-5809, USA. npirzada@mco.edu
Mayo Clinic Proceedings
|May 19, 2001
Summary
Central pontine myelinolysis (CPM) is a brain disorder typically caused by rapid sodium correction. This case highlights a rare CPM presentation with cerebellar symptoms, even with slow sodium level adjustments.
Area of Science:
- Neurology
- Neuroimaging
- Internal Medicine
Background:
- Central pontine myelinolysis (CPM) is a severe neurologic condition often linked to rapid correction of hyponatremia.
- It involves demyelination in the pons, typically affecting motor pathways and leading to significant disability.
- Standard clinical presentations include spastic tetraparesis and locked-in syndrome.
Observation:
- This report details a unique case of CPM presenting with cerebellar syndrome.
- The patient exhibited no pyramidal tract involvement, a deviation from typical CPM symptoms.
- Importantly, the serum sodium correction rate was within recommended safe limits (≤12 mEq/24 h).
Findings:
- Magnetic resonance imaging (MRI) revealed characteristic central pontine T1 and T2 prolongation.
- The patient's presentation with cerebellar signs challenges the conventional understanding of CPM's clinical manifestations.
- This suggests CPM can manifest atypically even when hyponatremia is corrected cautiously.
Implications:
- This case underscores the importance of considering atypical presentations of CPM.
- It suggests that factors beyond the rate of sodium correction may contribute to CPM development.
- Further research is needed to elucidate the pathogenesis of non-traditional CPM syndromes.