Endocrinology Research and Practice
Case Report

A Case of Thyrotropin-Secreting Pituitary Adenoma (TSH-oma)


Dicle University Medical School, Endocrinology, Diyarbakır, Turkey


Dicle University, Medical Faculty, Department of Endocrinology, Diyarbakir, Turkey


Dicle University School of Medicine, Department of Nuclear Medicine, Diyarbakır, Turkey

Endocrinol Res Pract 2002; 6: 159-162
Read: 673 Downloads: 215 Published: 25 March 2022
Thyrotropin-secreting pituitary adenomas are rare tumors, and prevalence is about one case per million. Normal or elevated thyrotropin levels in hyperthyroid patients are characteristic of TSH-secreting pituitary adenoma. Because TSH-secreting pituitary tumors are uncommon, subjects with TSH-omas are often misdiagnosed as having Graves’ disease, and misdiagnosis may leads to enlargement of tumor size. We present a patient with thyrotropin-secreting pituitary adenoma misdiagnosed as Graves’ disease. The patient has high T3, FT3, FT4 and TSH, and she has a pituitary microadenoma ( 9 mm). Once the inappropriate secretion of TSH is established, the differential diagnosis between TSH-secreting tumor and resistance to thyroid hormone must be made.
EISSN 2822-6135