 PITUITARY:There is interval decrease in the size of the pituitary lesion along the right aspect of the gland measuring up to 6 mm CC x 5 mm ML today compared to 9 x 7 mm previously. The lesion is T2 hyperintense today compared to the prior exam where it was T2 isointense to gray matter but enhances somewhat more than it did previously. The pituitary stalk is no longer deviated. Small focal upper convex to the along the superior surface of the pituitary gland anteriorly is unchanged in size and configuration. There is no significant mass effect on the optic chiasm. There is symmetric enhancement of the bilateral cavernous sinuses without evidence of invasion.BRAIN: There is no acute infarct, mass effect, or cerebral edema. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The right vertebral artery flow void is felt to be present but not well-visualized, likely secondary to hypoplasia. The skull and extracranial soft tissues are unremarkable.
Interval decrease in pituitary lesion size, with change in imaging characteristics as described above.