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[Hyperthyroidism caused by inappropriate secretion of TSH. Apropos of 2 new cases]
1Service d'endocrinologie, CHU Rangueil, Toulouse.
Abstract:
Hyperthyroidism due to inappropriate secretion of TSH is rare. It may be due to either TSH-secreting pituitary adenomas (n = 15) or selective pituitary resistance to thyroid hormone action (n = 31). The recognition of these patients is of great clinical importance since they should be treated differently than patients with more common forms of hyperthyroidism (Graves' disease, autonomous thyroid nodule).