Introductory consultation with the anesthetist. First advance the 0° optic through the glottic plane into the trachea. Further advancement to the exit of the segmental bronchi on both sides. Inconspicuous mucosal conditions on all sides. Slow reflection back. No special features in the area of the cervical trachea. Intubation of the patient. Inspection of the glottis. No evidence of malignant mucosal changes in the subglottis, glottis and supraglottis. Inspection of the hypopharynx on both sides with the small siphon tube and the postcricoid region. Inconspicuous mucosal conditions. No abnormalities in the oropharynx, oral cavity or after pulling up the soft palate in the nasopharynx. Advance the flexible endoscope into the stomach. Careful reflection back. No special features in the area of the esophagus. Insertion of the mouth blocker. The tumor can now be seen in the area of the right edge of the tongue, located approximately in the middle of the tongue. The tumor grows exulcerating. Clinically safe cutting around the tumor in all planes. The lingual artery is exposed and ligated. Removal of the tumor. Marking of the specimen. During frozen section histology, the diagnosis of squamous cell carcinoma is made and the resection in sano is also confirmed histologically. After careful hemostasis, inverting adaptation of the wound edges and closure of the resection area. Completion of the procedure. Final consultation with the anesthetist. The patient is transferred to the recovery ward.