First induction of anesthesia by the anesthetist. Then the tracheoscopy is performed. Enter with the 0-degree scope and inspect the vocal folds and trachea up to the carina. Inconspicuous conditions on all sides. Intubation by the surgeon. Entry with the flexible esophagoscope and inspection of the esophagus and stomach. No abnormalities here. Intubation with the Kleinsasser tube and inspection of the oropharynx, tonsil larynx, posterior pharyngeal wall, base of tongue, all unremarkable. Inspection of the hypopharynx and in particular the left side, as the patient reported pain here. Even on close inspection, no mucosal lesion or mass was found. The posterior pharyngeal wall, the hypopharyngeal side walls, the piriform sinuses, the postcricoid region and the esophageal entrance are completely unremarkable. Adjustment of the arytenoid region and inspection of the arytenoid cusps and the interaryngeal region. Inconspicuous on all sides. Inspection of the glottic plane, the pocket folds, morgue sinus, no mass here either. Now insertion of a covered retractor and inspection of the oral cavity. Apart from the mass on the tongue, no other lesion can be seen here either. The mass on the tongue is approx. 0.5 cm in diameter. It is cut around on all sides with a safety margin of 1 cm. The specimen is sent to histology in one piece, marked with a suture. Hemostasis with bipolar coagulation and completion of the procedure.