• Ceren Erkalaycı, Leyla Ramazanoğlu, and Eren Gözke.
• Department of Neurology, University of Health Sciences, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey. cerkalayci@gmail.com.
• Ir J Med Sci. 2024 Apr 1; 193 (2): 993997993-997.

AbstractThe diagnosis of central pontine hyperintensities on cranial magnetic resonance imaging has wide-spectrum clinical entities, and the pro-type diagnosis of these is central pontine myelinolysis. The rapid changes in extracellular environment due to an imbalance of electrolytes or metabolic or toxic stress to the myelin sheath can cause demyelination of white matter tracts in pons, which is why this situation could have different etiologies than just rapid sodium changes. Central pontine myelinolysis can be presented with different clinical scenarios from asymptomatic to death. Here, we present eight patients who had central pontine hyperintensities on radiological imaging but showed various clinical symptoms and different etiologies. The etiologies of these cases are hypertriglyceridemia, alcohol consumption, antidepressant usage, immunocompromised situations, uncontrolled diabetes mellitus, liver and kidney failure, electrolyte changes, and adrenal insufficiency. We aimed to take attention with this case series to the fact that not only fast correction of hyponatremia is the cause of central pontine myelinolysis, but also different etiologies could play a role in this situation, and making the central pontine myelinolysis diagnosis considering different diagnosis is very important.© 2023. The Author(s), under exclusive licence to Royal Academy of Medicine in Ireland.

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