Thyroid hormone resistance and enlargement of the sella turcica during pregnancy.

Case Report: A 26-year-old pregnant woman was admitted to our institution running her 30 weeks of gestation. The patient had a past history of total thyroidectomy cause of a thyroid papillary carcinoma and presented with increased supraphysiological TSH levels under 250 microg T4, while slightly hyperthyroid, from the clinical point of view. Partial resistance to thyroid replacement therapy or TSH-secreting tumour was evoked.