We present a case of lateropharyngeal abscess, which was caused by the undermucous dissection of the lateral wall of the nasopharynx in the moment to make a nasotracheal intubation in a patient with long-term intubation. In the International Literature none other case of this complication have previously been reported and we things that is suitable his publication and the revision of this anesthetic method and their repercussions in the field ORL.