Method: A cases series prospective study of 86 patients with TDC at the ENT Hospital between 03/2013 and 03/2016 Results: A total of 86 patients: group 1 (≤15 years) have 31 patients (36%), average age 10.25±4.75, group 2 (>15 years) have 55 patients (64%), average age 32.68±11.25.