The exchange of nasal respiratory mode for oral one is quite common in the first years of life due to interfering factors [4], such as organic changes: obstruction of the upper airways (rinitis [5], hypertrophic palatine and/ or
pharyngeal tonsils, deviation of septum, among others), or even non-organic changes, due to deleterious habits [2,6].
Hypertrophic changes in the mucous membrane of the nasal cavity, hypertrophic changes in the
pharyngeal tonsil, and anomalies of the intranasal structures were assessed by means of rhino and video endoscopy using endoscopic techniques and endoscopic photography.
Most common site of fishbone impaction is
pharyngeal tonsil. While sometimes it produces laceration of mucosa and moves further down the digestive tract due to peristalsis.
In the study on 62 palatine tonsils and 77
pharyngeal tonsils in 77 children [23], 17 palatine tonsils in 14 children were RUT positive and H.