Reason: Evaluate for pituitary mass. History: Head CT finding. There is an enhancing pituitary mass that measures approximately 15 AP x 20 SI x 25 RL mm. There is associated mass effect upon the optic apparatus and extension into the cavernous sinuses with partial encasement of the right internal carotid artery. There is no evidence of intracranial hemorrhage or infarction. There is mild patchy cerebral white matter T2 hyperintensity, which likely represents chronic small vessel ischemic disease. The ventricles and sulci are unchanged in size and configuration. There is no midline shift or herniation. The imaged paranasal sinuses, mastoid air cells, and scalp soft tissues are unremarkable. There is a right lens implant.
A pituitary tumor that measures up to approximately 25 mm and exerts mass effect upon the optic apparatus likely represents a macroadenoma.