A 53-year-old woman comes to your office because she would like to discuss her recent MRI imaging results with you. The magnetic resonance imaging of her neck and surrounding regions revealed degenerative changes in the cervical spine and a pituitary mass of 4 mm in size. She has no symptoms except her neck pain. She denies headaches, vision changes or hormonal changes. She reports anxiety because she is concerned about the pituitary mass. What is the next step in the management of this pituitary mass?