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J Neuroimaging. 2000 Jul;10(3):169-72.

Central pontine myelinolysis: delayed changes on neuroimaging.

Author information

1
Department of Neurology, Wake Forest University School of Medicine, Winston-Salem, N.C. 27127, USA.

Abstract

The authors report two cases, a 44-year-old woman and a 6-year-old girl who had mental status changes and hyponatremia. Serum sodium levels in both of these cases were corrected quickly with further decline in their mental status, and the patients became quadriparetic. Magnetic resonance imaging (MRI) studies performed then did not reveal any abnormalities, whereas a repeat imaging study performed 10-14 days after the shift in serum sodium revealed evidence for central pontine myelinolysis and extrapontine demyelination. The clinical manifestations and distribution of lesions seen on the imaging studies demonstrated that the above presentation of neurologic illness is the result of hyponatremia and its correction. The authors conclude that imaging studies performed early during the illness may be unremarkable, but still a diagnosis of central pontine myelinolysis should be suspected and, most importantly, a repeat imaging study might be required in 10-14 days to establish the diagnosis of central pontine myelinolysis.

PMID:
10918744
[Indexed for MEDLINE]

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