How do first branchial cleft anomalies differ from preauricular cysts and fistulas?

Updated: Mar 09, 2020
  • Author: Ariel A Waitzman, MD, FRCSC; Chief Editor: Ravindhra G Elluru, MD, PhD  more...
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First branchial cleft anomalies have a more complex embryologic origin than preauricular cysts and fistulas do. These lesions may not have an obvious sinus tract on the skin and may manifest as an abscess extending deeply into the EAC, the parotid, or the neck.

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