 Given dedicated pituitary MRI acquisition technique, previously demonstrated scattered T2 hyperintensities in the subcortical and periventricular white matter are not well characterized.Redemonstrated is a hypo-enhancing lesion within the posterior pituitary gland which is T1 hyperintense and T2 hypointense measuring 7 mm, unchanged. As before, it encroaches the optic apparatus without discrete abutment or displacement.
Stable pituitary lesion. As before, the differential diagnosis includes a microadenoma, perhaps with proteinaceous/hemorrhagic degeneration, or a proteinaceous/hemorrhagic Rathke's cleft cyst.