Before surgery, pituitary function was normal; how- ever, after resection, panhypopituitarism and diabetes in- sipidus developed. Additional findings on preoperative MRI included features characteristic of spontaneous in- tracranial hypotension (SIH): pachymeningeal thickening with gadolinium enhancement, flattening of the pons, and lowering of the brainstem and cerebellar tonsils, hence the term “sagging brain” (Figure 1). Immediate postoperative pituitary MRI showed intraventricular hemorrhage.
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