What are the NCCN guidelines for the use of FNAB in the diagnosis of thyroid cancer?

Updated: May 09, 2018
  • Author: Pramod K Sharma, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

Answer

Guidelines include the following for FNAB:

  • Nodules >1 cm if suspicious US features are present
  • Nodules >1.5 cm if no suspicious US features are present

AACE/ACE/AME and NCCN suggest a serum calcitonin assay as an optional test, [34, 33]  but the ATA guidelines make no recommendation on the routine measurement of serum calcitonin because of insufficient evidence. [1]  All three guidelines recommend radionuclide imaging in patients with a low TSH level. [1, 34, 33]


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