MR images of the patient’s head, obtained on hospital day 17, 3 days after renormalization of overcorrected hypernatremia.A, FLAIR image now demonstrates.

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MR images of the patient’s head, obtained on hospital day 17, 3 days after renormalization of overcorrected hypernatremia.A, FLAIR image now demonstrates the classic trident-shaped pontine signal intensity abnormality.B, The extent of DWI signal intensity a... MR images of the patient’s head, obtained on hospital day 17, 3 days after renormalization of overcorrected hypernatremia.A, FLAIR image now demonstrates the classic trident-shaped pontine signal intensity abnormality.B, The extent of DWI signal intensity abnormality in the pons has also become more extensive, assuming a trident-shape.C, The b = 0 image has also become abnormal in the interim.D, The ADC map again shows that the high DWI signal intensity corresponds to restricted diffusion (see Figure 1). Kimberly A. Ruzek et al. AJNR Am J Neuroradiol 2004;25:210-213 ©2004 by American Society of Neuroradiology