Introductory consultation with the anesthetist. Then insertion of the tonsil plug. Exposure of the left tonsil lobe. Wide incision of the tumorous process in the area of the left tonsil lobe while protecting the posterior palatal arch. Careful dissection in the area of the musculature and dissection up to the base of the tongue. As far as can be assessed intraoperatively, the resection is carried out in healthy tissue on all sides. The posterior palatal arch can be preserved. Careful hemostasis. Removal of the tumor in the area of the base of the tongue. Marking of the specimen. Removal of marginal samples in clinically unremarkable resection conditions. Careful hemostasis. Insertion of a gastric tube. Check the wound bed again. Dry conditions. Final consultation with the anesthetist. Due to the extensive resection and the localization of the cervical lymph nodes, a simultaneous neck dissection is not performed. The neck dissection is performed in two stages.