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Thyroid cancer diagnosis is shifting due to overdiagnosis concerns. Current guidelines suggest avoiding biopsies for small nodules and emphasize active surveillance for low-risk thyroid cancers.

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Area of Science:

  • Endocrinology
  • Oncology
  • Diagnostic Pathology

Background:

  • Thyroid cancer incidence and mortality trends suggest overdiagnosis.
  • Recent efforts aim to mitigate overdiagnosis in thyroid cancer management.

Purpose of the Study:

  • To review current changes in thyroid cancer diagnosis and management.
  • To highlight the shift towards recognizing and managing low-risk thyroid cancers.

Main Methods:

  • Review of major guidelines for thyroid nodule management.
  • Analysis of data supporting active surveillance for low-risk thyroid cancers.
  • Examination of reclassification of specific thyroid tumor types.

Main Results:

  • Guidelines now recommend against biopsy for nodules <1cm.
  • Active surveillance is recognized as safe for low-risk thyroid cancers.
  • Encapsulated follicular variant papillary thyroid cancers are reclassified as noninvasive follicular thyroid neoplasm with papillary-like nuclear features.

Conclusions:

  • Thyroid cancer workup and management are rapidly evolving.
  • Recognition of low-risk thyroid cancers reduces the need for aggressive intervention.
  • Current practices are adapting to avoid overdiagnosis and overtreatment.