Tracheoscopy performed first. Setting the glottic plane, entering the cervical trachea with the zero-degree straight-out rigid tracheoscope: no evidence of exophytic tumor growth. Subsequent intubation, then esophagogastroscopy: no evidence of exophytic tumor growth in the esophagus and stomach. In the gastric region, the typical gastric fold is abolished. Inspection of the larynx, anterior commissure, left, right vocal fold and posterior commissure macroscopically unremarkable. Left and right hypopharynx, piriform sinus and postcricoid region macroscopically unremarkable. Now open the oral cavity with the mouth retractor. An exophytic tumor measuring approx. 2 x 3 cm can now be seen in the area of the edge of the tongue. After marking with the electron needle, an excision biopsy is performed at a safe distance from the tumor. The tumor is removed in toto and marginal samples are taken from the specimen in a clockwise direction. The tumor and the marginal samples should be sent to the pathology department for urgent histology. Minor bleeding is coagulated, major bleeding is stopped. The wound edges are then readapted to prevent bleeding. F a c i t : cT2 tongue margin carcinoma on the right, which was removed in toto by excisional biopsy. After receipt of the histology, decision on the further procedure, in particular on the performance of a right neck dissection.