Abstract
Introduction: Laryngeal papillomatosis is a benign neoplasm divided in two groups: juvenile and adult laryngeal papillomatosis both caused by human papillomavirus (HPV). A possible risk factor for recurrent laryngeal papillomatosis in adults is extra-esophageal reflux, through the damage caused by the enzyme pepsin present in gastric juice. Objectives: to correlate the presence of pepsin …