Pituitary adenomas (tumors) are the most prevalent growth affiliated with the pituitary gland; they account for 15% of primary brain tumors and are the third most common intracranial tumor after meningiomas and gliomas. The majority of pituitary adenomas are slow-growing and benign. However, as they grow in size, they can put pressure on surrounding structures, such as the nerves connecting the eyes to the brain, causing symptoms.