<prompt> Commonest site of branchial cyst: September 2012Lower 13rd of sternomastoid on anterior borderLower 13rd of sternomastoid on posterior borderUpper 13rd of sternomastoid on anterior borderUpper 13rd of sternomastoid on posterior border  <response>: Ans. C i.e. Upper 13rd of sternomastoid on anterior border Branchial cyst MC site: Upper pa of neck, Wall is made of: Lymphoid tissue 