Demonstration of findings to <CLINICIAN_NAME>. Positioning of the patient by the surgeon after nasal intubation. Insertion of the McIVOR oral spatula. The resection margins are defined by <CLINICIAN_NAME>. A tumor tonsillectomy is performed, leaving out the uvula and the posterior palatal arch. The safety distance to the macroscopically visible change is one cm on all sides. A tumor tonsillectomy is then performed on the left side using cold instruments so as not to mask the edges of the deposit. Minor bleeding is treated with bipolar forceps. A large wound cavity is now created. The pharynx is intact. Parapharyngeal fat can only be detected in the upper third of the tonsil lobe. The specimen is sent for frozen section diagnosis and marginal samples are also sent for frozen section diagnosis. On arrival of the frozen section, microfocal margin-forming infiltrates are seen on the lateral pharyngeal wall, caudal to the area where fat is visible parapharyngeally. Demonstration of the findings on <CLINICIAN_NAME>. The remaining lateral wall is now resected so that parapharyngeal fatty tissue is now visible up to the lower third of the tonsil lobe. The resection is sent in with suture marking close to the tumor and the procedure is completed for the time being. A further resection would require safe flap coverage. Waiting for the final histology and discussion of the findings in our tumor conference. Meticulous hemostasis beforehand. Relax the McIVOR blade for 2 minutes and clamp it again, no bleeding. A nasogastric tube was inserted and should remain in place for at least 5 days. Conclusion: It is at least a cT2 oropharyngeal carcinoma on the left side. Waiting for the final histology and discussion of the findings in our tumor conference. If the R0 resection is confirmed, a left neck dissection would be necessary in 3 weeks. If a subsequent resection were necessary, this would have to be planned with a radial flap.