Cyst of the floor of the mouth causing respiratory obstruction. Report of one case

: Three major groups of lesions can cause swelling in the floor of the mouth: infectious, neoplastic, and cystic. We present the case of a patient with inflammatory cyst in the floor of the mouth that reached, in a little while, huge dimensions. Needle aspiration of the lesion caused an infectious process that enlarged the cyst and led to progressive difficulties in breathing. Treatment was by emergency tracheostomy and enucleation of the lesion using an intraoral approach. The enucleation was performed through a mucosal incision along the midline of the floor of the mouth, starting just behind the lingual fold, and extending along the ventral surface of the tongue.