Initially induction of anesthesia and tracheoscopy, inspection of the trachea up to the carina revealed normal mucosal conditions. Followed by transnasal endotracheal intubation. Positioning of the patient by the surgeon. A flexible esophagoscopy is performed using an endoscope, which is carefully advanced to the stomach under visualization. In the area of the stomach up to the pylorus, conditions are unremarkable. Inversion of the endoscope reveals normal findings in the area of the esophago-gastric junction. The endoscope is then withdrawn and a rigid laryngo- and pharyngoscopy is performed using a Kleinsasser tube. The glottis, subglottis and esophagus are unremarkable. The piriform sinuses on both sides, the posterior wall of the hypopharynx and the postcricoid region were unremarkable. The posterior wall of the oropharynx and the lateral walls were unremarkable. The base of the tongue was unremarkable on endoscopy and palpation. Subsequently, two self-retaining retractors were placed in the oral cavity, a rein suture was placed and the oral cavity was inspected. A maximum 2 cm exophytic mass without significant deep infiltration was found. During palpation of the left posterior border of the tongue, the incision was marked with a large safety margin using an electric needle. Successive resection of the mass, which is sent in for final histology with a suture marker. Hemostasis by means of bipolar coagulation. Repeated inspection. Completion of the procedure without complications.