title: Management of thyroid nodules. II: Scanning techniques, thyroid suppressive therapy, and fine needle aspiration.
abstract: For the differentiation of benign from malignant thyroidal disease, ultrasound displays anatomic but not histologic features. Other visualization techniques can be used including isotope scanning (radioiodine, 99m technetium, 241 americium fluorescence, 131 cesium, 67 gallium, 75 selenomethionine, 201 thallium, 32 phosphorus, 99m Tc-bleomycin, 197 mercury, 133 xenon), thermography, x-ray techniques (plain films, computed tomographic scan, xeroradiography, chest x-ray barium swallow, lymphography, angiography), and thyroid hormone suppression. Needle biopsy can be done by core biopsy (Vim-Silverman and drill biopsy), large needle biopsy for histologic processing and fine needle aspiration for cytologic interpretation. The latter is the safest, most reliable, and most cost-effective technique currently available to differentiate between benign and malignant thyroidal disease and has great promise for the future.
mesh_terms: D000576:Americium; D013956:Antithyroid Agents / Q000627:therapeutic use; D001707:Biopsy, Needle; D002588:Cesium Radioisotopes; D005710:Gallium Radioisotopes; D006801:Humans; D007457:Iodine Radioisotopes; D011868:Radioisotopes; D012645:Selenomethionine; D013667:Technetium; D013793:Thallium; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology
chemical_list: D013956:Antithyroid Agents; D002588:Cesium Radioisotopes; D005710:Gallium Radioisotopes; D007457:Iodine Radioisotopes; D011868:Radioisotopes; D013667:Technetium; D012645:Selenomethionine; D013793:Thallium; D000576:Americium