Surgery Commonest site of branchial cyst: September 2012 A Lower 1/3rd of sternomastoid on anterior border B Lower 1/3rd of sternomastoid on posterior border C Upper 1/3rd of sternomastoid on anterior border D Upper 1/3rd of sternomastoid on posterior border 💡 Explanation Commonest site of branchial cyst: September 2012 ✓ Correct Answer: C. Upper 1/3rd of sternomastoid on anterior border