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Third or fourth branchial pouch sinus lesions: a case series and management algorithm.

Yun Li1, Kexing Lyu1, Yihui Wen1

  • 1Department of Otolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.

Journal of Otolaryngology - Head & Neck Surgery = Le Journal D'Oto-Rhino-Laryngologie Et De Chirurgie Cervico-Faciale
|November 13, 2019
PubMed
Summary

This study developed a management algorithm for third and fourth branchial pouch sinus lesions, achieving a 1.5% recurrence rate in 67 patients through tailored fistulectomy techniques.

Keywords:
Congenital branchial anatomiesFistula tract excisionPyriform sinusRecurrent neck abscessesThyroiditis

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Area of Science:

  • Otolaryngology
  • Surgical Pathology
  • Pediatric Surgery

Background:

  • Branchial pouch sinuses are congenital anomalies that can present with recurrent infections or fistulas.
  • Third and fourth branchial pouch sinuses are rare and often misdiagnosed, posing management challenges.

Purpose of the Study:

  • To develop and validate an effective management algorithm for third and fourth branchial pouch sinus lesions.
  • To improve diagnostic accuracy and treatment outcomes for these rare congenital anomalies.

Main Methods:

  • Retrospective chart review of 67 patients with third or fourth branchial pouch sinus lesions (January 2014 - December 2018).
  • Classification of lesions into five types based on anatomical features.
  • Application of four optimized surgical methods (fistulectomy) tailored to individual patient characteristics.
  • Preoperative imaging including contrast-enhanced CT and laryngoscopy; ultrasound for thyroiditis assessment.

Main Results:

  • All 67 patients underwent successful fistulectomy.
  • The majority of lesions (68.7%) occurred on the left side of the neck, often presenting as recurrent abscess or draining fistula.
  • Mean follow-up was 25.8 months, with only one recurrence (1.5%) and no major complications observed.

Conclusions:

  • A refined classification system and algorithm-based treatment approach can significantly reduce recurrence rates for branchial pouch sinus lesions.
  • The proposed algorithm offers an effective strategy for managing third and fourth branchial pouch lesions, improving patient outcomes.