Which of the following is the most common location of branchial cyst?
Brachial cyst is most frequently located at the anterior border of sternocleidomastoid where the upper third meets the middle third. It usually arise from the failure of obliteration of pharyngobranchial ducts during fetal development. It appear as a tender inflammatory mass.
Upper ?rd of anterior border of SCM
Upper ?rd of posterior border of SCM
Lower ?rd of posterior border of SCM
Lower ?rd of anterior border of SCM