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Updated: Jun 14, 2026
07:43
Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
TSH secreting pituitary adenoma
The Journal of the Association of Physicians of India
|March 25, 2010
Summary
Thyrotropin (TSH)-secreting pituitary adenomas are rare causes of hyperthyroidism. Surgical removal is the primary treatment after thyroid hormone levels normalize.
Area of Science:
- Endocrinology
- Oncology
Background:
- Thyrotropin (TSH)-secreting pituitary adenomas are rare tumors, accounting for 1% of all pituitary adenomas.
- These tumors cause hyperthyroidism by overriding the normal feedback regulation of thyroid hormones.
Observation:
- The case presented with typical signs of hyperthyroidism, including elevated serum free thyroid hormones.
- Crucially, TSH levels remained non-suppressed, indicating a loss of normal feedback inhibition.
Findings:
- The patient had a pituitary adenoma secreting TSH.
- This led to sustained stimulation of the thyroid gland and subsequent thyrotoxicosis.
Implications:
- Early diagnosis and treatment of TSH-secreting pituitary adenomas are essential.
- Transsphenoidal surgery is the definitive treatment, aiming to restore euthyroidism.
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