20-year-old female with pituitary microadenoma, recent worsening headaches Again seen is a hypoenhancing lesion involving the left aspect of the pituitary gland measuring 4 to 5 mm in the transverse and craniocaudal dimensions. When compared to prior studies dating back to 12/20/2010, the lesion is stable to minimally larger. Unchanged associated T2 hypointensity. There is no evidence of pituitary macroadenoma. Bilateral cavernous sinuses are unremarkable. No suprasellar extension or mass effect on the optic chiasm.
Stable to minimal enlargement of hypoenhancing lesion involving the left aspect of the pituitary gland favored to represent a microadenoma. Note slight differences in measurement across the prior studies may be in part technique related.