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FIG 3. Image from case 3. Unenhanced midline sagittal view spin-echo T1-weighted image (625/13/4) shows hyperintensity at the median eminence, typical for ectopic posterior pituitary lobe (short arrow). A small hyperintense focus can also be seen lying posterosuperiorly on the superior aspect of the small pituitary gland (curved arrow), which probably also represents ectopic pituitary tissue. The sella has an abnormal morphology, with a sloping anterior wall. It contains a thin layer of soft tissue lining the floor of the dysplastic anterior sella and more recognizable pituitary tissue in the base of the sella. The infundibulum is difficult to definitely identify because it is markedly thinned but may lie more anteriorly than usual (long arrow).
