 There has been continued decrease in size of a sella based lesion compared to the prior two MRI studies. There remains hypoenhancing material within the pituitary gland proper, which now demonstrates a normal morphology measuring 7 mm in height. The pituitary infundibulum inserts on the midline of the gland and there is no cavernous sinus involvement. There are no suprasellar or parasellar masses and the cavernous sinuses are symmetric bilaterally. The cerebellar tonsils are in normal position. There is no abnormal enhancement within the brain.
There has been continued decrease in size of a sella based lesion compared to the prior two MRI studies. There remains hypoenhancing material within the pituitary gland proper, which now demonstrates a normal morphology measuring 7 mm in height. The differential diagnosis would most likely an involuting adenoma, prior pituitary apoplexy, or a resolving pituitary inflammatory process.