Pituitary adenoma: paresthesias and headaches. There is a cystic focus in the right pituitary gland that measures up to 6 mm. There pituitary gland is otherwise not particularly enlarged. The optic apparatus and cavernous sinuses are intact. There is no evidence of intracranial hemorrhage or acute infarct. There are unchanged mild punctate foci of high T2 signal in the cerebral white matter. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
A subcentimeter cystic lesion in the right pituitary gland may represent a cystic microadenoma.