First photo documentation, then prior to intubation adjustment of the laryngeal entrance with the laryngoscope and performance of tracheoscopy with the 0 degree scope: The trachea is unremarkable, as are the bifurcation and the visible main bronchi. After intubation, flexible esophagoscopy: The entire esophagus and stomach are unremarkable. Hypopharyngo- and laryngoscopy: Postcricoid region, esophageal entrance, pharyngeal side walls, posterior pharyngeal wall, vocal folds, supraglottic region, vallecula, tongue base and tonsil region unremarkable. Now insertion of a blocker into the oral cavity and suturing of a traction suture. An exophytic growing tumor can be seen in the area of the right half of the tongue, this infiltrates the tongue, but the largest part is exophytic growing, larger than 4 cm. The external histology revealed squamous cell carcinoma, which is why the tumor was immediately removed by partial excision of the tongue. This involves making an incision in the anterior part of the healthy muscle part of the tongue at a sufficient distance from the tumor. The entire tumor area is cut around with the electric knife down to the floor of the mouth and extirpated in toto. Sending the material for frozen section diagnostics. All edges are found to be tumor-free. The wound surface is bipolarly coagulated in some places. The artery or branches of the lingual artery were stitched several times intraoperatively. No bleeding at the end of the operation, no other special features. Waiting for the definitive histology and then discussion of the further procedure depending on the histology and neck status.