ENT The most frequent site of branchial cyst is at A Upper third of posterior border of sternocleidomastoid B Upper third of anteromedial border of sternocleidomastoid C Supraclavicular fossa D Lower third of anterior border of sternocleidomastoid 💡 Explanation The most frequent site of branchial cyst is at ✓ Correct Answer: B. Upper third of anteromedial border of sternocleidomastoid