The rising incidence of papillary thyroid microcarcinoma and is completion surgery necessary or not?

Oğuz Kuşcu1, Övsen Önay2, Bahar Kayahan2

  • 1Hacettepe University Faculty of Medicine Department of Otorhinolaryngology.

Insights

The incidence of papillary thyroid microcarcinoma (PTMC) is rising due to increased awareness. Hemithyroidectomy may be sufficient for some PTMC cases, as completion surgery is not always necessary.

Area of Science:

  • Endocrinology
  • Oncology
  • Surgical Pathology

Background:

  • Papillary thyroid microcarcinoma (PTMC) is defined as papillary cancer ≤1 cm.
  • Thyroid cancer incidence has risen over the past 30 years.
  • Increased awareness and improved diagnostic methods contribute to higher detection rates.

Purpose of the Study:

  • To evaluate the rising incidence of PTMC.
  • To determine if hemithyroidectomy is sufficient treatment for PTMC.
  • To assess the necessity of completion surgery for PTMC.

Main Methods:

  • Retrospective analysis of 462 patients undergoing thyroidectomy (2000-2015).
  • Data collected included surgical procedure, histopathology, complications, follow-up, and mortality.
  • All cases underwent ultrasound (USG) and fine-needle aspiration cytology (FNAC).

Main Results:

  • PTMC incidence increased significantly from 44.6% (2000-2007) to 74.4% (2008-2015) (p<0.001).
  • Of 22 PTMC patients needing completion surgery, 40 were managed with hemithyroidectomy alone.
  • No recurrence was observed in patients treated with hemithyroidectomy.

Conclusions:

  • The rising incidence of PTMC is linked to increased pathological and radiological awareness.
  • Completion surgery is not always necessary for PTMC, particularly incidental findings.
  • Hemithyroidectomy may be adequate for managing select PTMC cases, avoiding overtreatment.

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