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Laryngeal involvement by differentiated thyroid carcinoma.

Peter Zbären1, Michel Nuyens, Harriet C Thoeny

  • 1Department of Oto-Rhino-Laryngology, Head and Neck Surgery, University Hospital, CH-3000 Bern, Switzerland. peter.zbaeren@insel.ch

American Journal of Surgery
|June 24, 2005
PubMed
Summary

Differentiated thyroid carcinoma can invade the larynx, necessitating total laryngectomy (surgical removal of the voice box). Intralaryngeal tumor spread was observed in all analyzed cases, highlighting the importance of early diagnosis.

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Area of Science:

  • Oncology
  • Otolaryngology
  • Endocrinology

Background:

  • Laryngeal invasion by differentiated thyroid carcinoma is rare but severe.
  • It leads to significant morbidity and mortality.
  • This study focuses on cases requiring total laryngectomy.

Purpose of the Study:

  • To analyze clinicopathologic features of differentiated thyroid carcinoma with laryngeal invasion.
  • To evaluate intralaryngeal tumor spread in patients undergoing total laryngectomy.
  • To understand the patterns of laryngeal invasion.

Main Methods:

  • Retrospective analysis of 5 patients who underwent total laryngectomy for differentiated thyroid carcinoma.
  • Detailed clinicopathologic assessment.
  • Whole-organ sectioning for histologic evaluation of intralaryngeal tumor spread.

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Main Results:

  • All 5 patients showed intralaryngeal tumor spread.
  • Symptoms included hoarseness and dyspnea.
  • Survival varied, with 2 patients alive at 44 and 115 months post-surgery.
  • Invasion occurred via direct extension or posterior spread.

Conclusions:

  • Differentiated thyroid carcinoma can extensively infiltrate the larynx, making total laryngectomy essential.
  • Diagnosis of intralaryngeal spread relies on imaging and endoscopy.
  • Laryngeal invasion represents a challenging clinical scenario in thyroid cancer management.