Branchial lymphoepithelial cysts o arise from incomplete obliteration of branchial clefts or epithelial inclusions within lymph nodes o found in the foor of the mouth and posterior tongue o asymptomatic swellings o commonest in children and young adultsBranchial lymphoepithelial cysts ⚫ arise from incomplete obliteration of branchial clefts or epithelial inclusions within lymph nodes ⚫ found in the floor of the mouth and posterior tongue ⚫ asymptomatic swellings ⚫ commonest in children and young adults