Depends on your state or state to come
Radiation therapy
Removal of the tumor . If this is in the pituitary is done via transfeidonal (for the nose) .
You can do radio surgery if the doctor believes that will be done without damage to the optic nerve.
You can give a adrenolitico to help that the tumor does not generate major damage ,but it is momentary (ketoconazole) now there are other medications that doctors prescribe according to your condition