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Medical Term:

long-acting thyroid stimulator


a substance, found in the blood of some hyperthyroid patients, which exerts a prolonged stimulatory effect on the thyroid gland; associated in plasma with the IgG (7 S ?-globulin) fraction and seems to be an antibody or, perhaps, an immune complex.

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.