Branchial Cleft Anomaly
Pronunciation: BRANG-kee-ul
Congenital neck mass or tract resulting from incomplete obliteration of embryonic branchial apparatus, presenting as cysts, sinuses, or fistulas.
Full Definition
Branchial cleft anomalies are congenital malformations resulting from incomplete development or persistence of the embryonic branchial apparatus. These anomalies are classified by their cleft of origin (first through fourth) and can present as cysts, sinuses, or complete fistulas. Second branchial cleft anomalies are most common, presenting as lateral neck masses or external openings with tracts that may extend to the tonsillar fossa. First branchial cleft anomalies occur near the ear and may involve the external auditory canal. The diagnosis is often made clinically but may require imaging to delineate the tract anatomy. Surgical excision is the definitive treatment, often requiring careful dissection to avoid injury to important neurovascular structures.
Usage
Usage note: Specify cleft number (1st, 2nd, etc.) and type (cyst, sinus, or fistula) in documentation.
In Context
- "The second branchial cleft anomaly presented as a recurrent neck mass with intermittent drainage." — Pediatric surgery consultation
- "Complete excision of branchial cleft anomalies requires identification of the entire tract to prevent recurrence." — Surgical technique description