Case 053

History/Physical

History/Physical:

61-year-old right-handed male.

Gradual onset of bitemporal hemianopsia.

Solid/cystic mass (*) arising from the pituitary fossa extending into the suprasellar cistern. The mass has a waist at the diaphragma sella, leading to the 'snowman' sign. No cavernous sinus invasion is demonstrated.

There is mass effect on the floor of the 3rd ventricle and optic chiasm (arrow).

The margins are well-defined. There is remodelling of the floor of the sella (arrow).

Diagnosis: Pituitary adenoma, gonadotroph lineage