Watch this video to understand what branchial cleft cyst is, its cause, associated embryology, clinical manifestations, diagnostic approach, imaging findings and surgical management strategy. Timeline: 0:00 – Introduction to branchial cleft cyst 0:22 – Cause and embryology of branchial cleft cyst 1:41 – Symptoms and presentation 3:03 – Diagnosis and imaging 3:40 – Management and surgical treatment