HYPERTHYROIDISM AFTER SECTION OF THE PITUITARY STALK FOR MALIGNANT EXOPHTHALMOS: REPORT OF A CASE

ABSTRACT In the patient discussed in this report, hyperthyroidism developed after section of the pituitary stalk and after anterior pituitary deficiency was evident from clinical examination and laboratory tests. Assays for thyrotropin in the blood at a time when signs of pituitary deficiency existed, showed the presence of a thyroid-activating substance similar to that found in other patients with hyperthyroidism.