First consultation with the anesthetist. Then advance the 0° telescope through the glottic plane into the trachea. This is extremely difficult because it is very difficult to adjust the patient. Inconspicuous mucosal conditions in the area of the trachea and in the area of the bronchial system up to the exit of the segmental bronchi. Intubation of the patient by <CLINICIAN_NAME> using the glide laryngoscope. First inspect the postcricoid region and the hypopharynx on both sides: the mucosal conditions here are unremarkable. Now inspect the base of the tongue. No abnormalities here either. Inspection of the oropharynx reveals a clearly enlarged left tonsil with suspicious areas, with unremarkable findings in the area of the right tonsil. Pulling up the soft palate and inspection of the nasopharynx: Inconspicuous mucosal conditions here. Now advance the flexible oesophagoscope into the stomach. The mucosal conditions in the stomach and oesophagus are also normal. As discussed with the patient before the operation, the left tonsil is now removed as a tumor tonsillectomy. As far as can be assessed intraoperatively, the resection is successful in healthy tissue. The specimen is sent in its entirety for frozen section diagnostics. This reveals a circumscribed R1 resection in the area of the caudal margin. As a result, resection and collection of marginal samples, which are again found to be tumor-free during frozen section diagnostics. As part of the tumor tonsillectomy, the left tonsil and parts of the base of the tongue were resected. At the end of the operation, a mucosoplasty was performed in the area of the caudal margin to avoid scarring. After careful hemostasis, the procedure was completed. Depending on the p16 .......................... findings of the preparation, further procedure. Final discussion with the anesthesia department in the form of a consultation. The patient is transferred to the recovery ward.