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Preoperative T-1 enhanced coronal (A) and sagittal (B) images of a six-year-old boy with craniopharyngioma. Postoperative MRI taken within 48 hours shows successful removal of the tumor without any abnormal finding (C). However on postoperative day 6 after rapid fluctuation of his serum sodium level, low attenuation along the MCA territory was found (D), suggestive of cerebral infarction.
