title: Triiodothyronine-producing metastatic follicular thyroid carcinoma.
abstract: Thyroid hormone serum concentration was determined in a thyroidectomized patient with functional follicular thyroid carcinoma with metastases. Marked diminution of circulating serum T4 and FT4 with normal T3 serum concentration was found. The clinical implications of this shift in secretory activity are discussed.
mesh_terms: D000368:Aged; D002277:Carcinoma / Q000097:blood*; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D009362:Neoplasm Metastasis; D013964:Thyroid Neoplasms / Q000097:blood*; D013965:Thyroidectomy; D013972:Thyrotropin / Q000097:blood; D013974:Thyroxine / Q000097:blood*; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D007457:Iodine Radioisotopes; D014284:Triiodothyronine; D013972:Thyrotropin; D013974:Thyroxine