<prompt> Laryngeal papillomaSingleMultipleSeen in childrenAll of these  <response>: Laryngeal papilpomaMost common benign tumor of larynxSingle or multiple irregular, wart like glottic masses.HPV-6 11 may be the causative factor.Treatment is with CO, laser ablation.oc-IFN and indole - 3 - carbinole may also be used. 