PMID: 18719325Aug 23, 2008Paper

Central pontine and extrapontine myelinolysis in an infant associated with the treatment of craniopharyngioma: case report

Neurologia Medico-chirurgica
Satoshi TsutsumiMasanori Ito


A 3-year-old girl presented with osmotic demyelination syndrome after undergoing uneventful neuroendoscopic cystostomy for a growing cystic suprasellar craniopharyngioma following microscopic subtotal resection 1 year previously. Endocrinopathy had well been controlled by hormone replacement therapy and administration of 1-amino-8-d-arginine-vasopressin with serum sodium concentration within the normal range. She presented generalized seizure and fever on postoperative day 7, with hyponatremia beginning on postoperative day 4 and deteriorating despite frequent correction. The serum sodium concentration began to fluctuate on the same day, in the range 111-164 mEq/l, which lasted for 2 weeks, refractory for intense management. Her body temperature also fluctuated between hypo- and hyperthermia not correlated with serum inflammatory markers. Her conscious disturbance progressively deteriorated with spastic paraparesis. T(2)-weighted magnetic resonance (MR) imaging taken on postoperative day 19 revealed hyperintense areas in the pons, external capsule, bilateral thalami, and basal nuclei, which had not been recognized before, suggesting osmotic demyelination syndrome causing central pontine and extrapontine myelinolysis. MR imaging...Continue Reading


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