A pituitary tumor is a growth that affects the pituitary gland, which is a small organ located at the base of the brain. The pituitary gland is responsible for producing hormones that regulate important bodily functions, including growth, metabolism, and reproduction. Pituitary tumors can be benign (noncancerous) or malignant (cancerous). How long a person can live with a pituitary tumor largely depends on the type of tumor and the patient's overall health. If the tumor is benign, it may not require treatment and can be monitored over time. However, if the tumor is malignant, it may need to be surgically removed and may require additional treatments, such as radiation or chemotherapy. With adequate treatment and management, those living with a pituitary tumor can potentially live long, healthy lives.