PMC8542968_01
SE T1w sequences (sagittal on the left and coronal on the right) show a posterior bright spot of neurohypophysis increased in size and stretched upward.
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T1w and TSE T2w, showed the posterior pituitary bright spot increased in size and stretched upward ( Figure 1 ). The anterior pituitary gland and pituitary stalk were unremarkable, as were the remaining brain structures.
3D Fat Suppression T1w VIBE sequences (sagittal, coronal and axial from left to right) confirm the hypothesis of lipoma of the tuber cinereum, as the upper part of the "unusual pituitary bright spot" disappears, leaving a small hypointense central area most probably representing a fibrosus core (continuous arrows). The neurohypophysis remains unchanged as expected, normal in signal, shape, and size (dotted arrow).
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T1 VIBE sequences ( Figure 2 ), showed a normal posterior pituitary gland both in shape and size, and the presence of a suprasellar lipoma close to the tuber cinereum, and extending down to the neurohypophysis, measuring 1.15 cm x 0.5 cm x 0.35 cm in craniofacial, transverse and antero-posterior dimensions, respectively. The patient and family were informed about the benign nature of lipomas, the lack of evidence about a causal correlation between CPP and suprasellar lipomas, and that MRI follow-up was not recommended unless symptoms occur.