Tumours can put pressure on the pituitary gland and the nearby structures. This can cause headaches and loss of side-visions
2. As the tumour grows in size, it can damage the normal functioning of the gland and interfere with hormone production. Overproduction or hormonal deficiencies can cause specific signs and symptoms or sometimes a combination of them. For example, ACTH tumours exhibit signs and symptoms of Cushing’s syndrome.