Management Challenges in a Child with Chronic Hyponatremia: Use of V2 Receptor Antagonist

Figure 1

MRI of the brain. (a) Axial FLAIR image demonstrates asymmetric enlargement with abnormal FLAIR hyperintense signal within the right hypothalamus (red circle). (b) Coronal postcontrast T1 weighted image demonstrates no abnormal enhancement within the enlarged right hypothalamus (red arrow). (c) Coronal T2 weighted image demonstrates the mass abutting the lateral margin of the third ventricle and the superior margin of the optic chiasm (red arrow). (d) Follow-up axial FLAIR image, approximately 3 years later, demonstrates no significant change in size and abnormal hyperintense signal within the lesion.

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