A branchial cleft abnormality is a cluster of abnormally formed tissue in the neck. Branchial cleft abnormalities may form:
- Cysts or sinuses. These are pockets full of fluid.
- Fistulas. These are passages that drain to an opening in the skin surface.
Branchial cleft abnormalities are usually found in front of the large muscles on either the side of the neck.
This health problem can cause local infections that keep coming back. This may happen when your child has another infection, like a cold, cough, or sore throat.