“…The regulatory influence of the anterior lobe of the pituitary gland and the hypothalamus on thyroid function, as well as the importance of pituitary factors in the development of exophthalmic goitre, has been well documented (7,8,18,30). The interrelationship between the corticotropic and exophthalmos-producing activity of the anterior pituitary has been demonstrated, for instance by the recent observation of a n exophthalmos-producing factor in the serum and pituitary of patients with Gushing's syndrome and acromegaly, which was shown to disappear after hypophysectomy or pituitary irradiation (26).…”