Endocrine Abstracts

TSH producing pituitary adenomas are a rare cause of thyrotoxicosis. These tumors account for only 1–2% of the pituitary adenomas. Co-secretion occurs in 30% of thyrotropinomas and requires careful investigation and subsequent follow up.A 43-year-old male presented with hand tremor and tachycardia. He was found to have elevated TSH, free T4 (FT4) and free T3 (FT3), but did not get treatment for years. In 2019 he developed atrial fibrillation. TSH wa...