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Multicentricity of Type II First Branchial Cleft Anomalies.

Kyle J Kozak1, Nitin Wadwhani2, Douglas Johnston3

  • 1Department of Otolaryngology - Head & Neck Surgery, University of Illinois Chicago, Chicago, Illinois, USA.

The Laryngoscope
|January 11, 2026
PubMed
Summary
This summary is machine-generated.

Type II first branchial cleft anomalies (FBCAs) can be multicentric, with over 27% of cases showing pathology beyond the primary cyst. This supports extensive surgical resection for type II FBCAs to prevent recurrence.

Keywords:
branchial cleft anomaliescongenital neck massfirst branchial cleft cystparotidectomywork classification

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Area of Science:

  • Otolaryngology
  • Pediatric Surgery
  • Developmental Biology

Background:

  • First branchial cleft anomalies (FBCAs) arise from developmental errors of the external auditory canal.
  • A new classification by the International Pediatric Otolaryngology Group (IPOG) categorizes FBCAs by location: Type I (external) and Type II (involving the parotid gland).
  • The IPOG consensus recommends extensive resection for FBCAs to minimize recurrence.

Purpose of the Study:

  • To investigate the potential multicentric nature of Type II FBCAs.
  • To seek histological evidence supporting the IPOG recommendation for extended surgical resection of Type II FBCAs.

Main Methods:

  • Histopathological analysis of archived Type II FBCA resections.
  • Evaluation for satellite lesions or filamentous tracts indicative of multifocal disease or extension beyond the main lesion.

Main Results:

  • Twenty-two specimens were analyzed for FBCA tissue within the parotid gland.
  • Over 27% (6/22) of specimens exhibited FBCA tissue external to the main lesion or multiple, distinct epithelial rests, suggesting multicentricity.

Conclusions:

  • Type II FBCAs demonstrate extensive and potentially multicentric characteristics.
  • These findings validate the IPOG consensus for more comprehensive surgical dissection and removal of surrounding tissue to improve recurrence prevention.