 Redemonstrated is an approximately 6 mm craniocaudal x 3 mm AP dimension T1 hypointense, T2 hyperintense, nonenhancing focus involving the posterior aspect of the pituitary. The posterior pituitary lobe appears to be flattened posteroinferiorly. The pituitary gland anteriorly is normal in size and shape without other discrete mass lesion. There is no macroadenoma. The pituitary infundibulum inserts on the midline of the gland. There are no suprasellar or parasellar masses and the cavernous sinuses are symmetric bilaterally. Limited views of the other intracranial structures are unremarkable. A 7 mm enhancing excrescence is noted of the skin just superior and anterior to the ear.
1.Redemonstrated is an approximately 6 mm craniocaudal x 3 mm AP dimension T1 hypointense, T2 hyperintense, nonenhancing focus involving the posterior aspect of the pituitary. The posterior pituitary lobe appears to be flattened posteroinferiorly. This constellation of findings is most suggestive of a Rathke's cleft cyst.2.A 7 mm enhancing excrescence is noted of the skin just superior and anterior to the ear.