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

Updated: May 14, 2020
  • Author: Pramod K Sharma, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Guidelines include the following for FNAB:

  • Nodules ≥1cm with high or intermediate risk US features
  • Nodules ≥1.5 cm with low risk US features
  • Nodules ≥2 cm with very low risk US features, consider FNAB; observation is a reasonable alternative

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