“…We identified twelve pediatric cases described in the Anglo-American literature to date [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] . The leading symptoms of hypopharyngeal duplication cysts are respiratory disorders such as stridor, aspiration, dysphagia and regurgitation.…”