[Must cold nodules continue to remain absolute indications for surgery?].

Area of Science:

• Endocrinology
• Nuclear Medicine
• Surgical Oncology

Context:

• Thyroid surgery rates have significantly increased due to advancements in nuclear diagnostic techniques.
• Retrospective analysis of 6252 thyroid operations over 15 years shows a rise in scintigraphically cold thyroid nodules.
• This trend necessitates re-evaluating surgical indications based on diagnostic findings.

Purpose:

• To analyze trends in thyroid operations, scintigraphic findings, and malignancy rates.
• To assess the impact of improved cancer detection and histologic diagnosis on thyroid cancer management.
• To reconsider the necessity of surgery solely based on scintigraphic cold thyroid nodules.

Summary:

• The study observed an increase in scintigraphically cold thyroid nodules relative to total thyroid operations.
• Despite this, the malignancy rate in cold nodules decreased to 3.2%, while other scintigraphic findings showed a 1.2% malignancy rate.
• Significant improvements in early cancer detection (Stage I) and histologic differentiation of carcinomas were noted.

Impact:

• Earlier detection and better differentiation of thyroid cancers have led to more curative treatments.
• The malignancy rate in cold thyroid nodules has fallen, suggesting a need to reassess surgical criteria.
• These findings advocate for a more selective approach to thyroid surgery, moving away from invariable indications based on cold nodules.