Neoplasm of uncertain behavior of pituitary gland [D44.3], Reason for Study: ^Reason: history of pituitary tumor s/p apoplexy now with panhypopituitarism and new vision changes, please evaluate for recurrent tumor History: intermittent vision changes The pituitary gland is very small or nearly empty sella.There is no hypo-enhancement or signal abnormality suggestive of neoplasm. The pituitary stalk is located at midline without deviation, and is normal in caliber, signal intensity and enhancement. The suprasellar cistern, optic chiasm, hypothalamus, and cavernous sinuses are unremarkable. The orbits and contents are unremarkable. On T2 weighted coronal scan, there is about 5mm x 3.6mm sized top of basilar artery and left side P1 junctional aneurysm. On prior scan, the coronal T2 weighted image demonstrated subtle outward bulging lesion on the top of basilar artery. However, it was insufficient to make a diagnosis of basilar artery aneurysm.
1. Empty sella, otherwise unremarkable pituitary MRI.2. Top of basilar artery and the left PCA P1 segment junctional aneurysm (5mm x 3.6mm) as described above.. 