Definition of Branchial cleft cyst

Branchial cleft cyst: A cavity that is a remnant from embryologic development and is still present at birth in one side of the neck, just in front of the large angulated muscle on either side (the sternocleidomastoid muscle). The cyst may not be recognized until adolescence, when it enlarges its oval shape. Sometimes a branchial cleft cyst develops a sinus or drainage pathway to the surface of the skin, from which mucus can be expressed. Total surgical excision is the treatment of choice. Also known as branchial cyst.


Last Editorial Review: 3/19/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.

STAY INFORMED

Get the Latest health and medical information delivered direct to your inbox!