After appropriate preparation, adjustment of the endolarynx with the Kleinsasser B-tube, which is successful. Now the exophytic mass can be seen, which does not quite reach the anterior commissure anteriorly, but reaches the vocal process posteriorly. Laterally, it is covered by a strip of supraglottis. Start with laser resection. First, a strip of the supraglottis is resected for the sake of clarity. The tumor is then cut horizontally at the transition from the anterior two-thirds to the posterior third of the vocal fold and guided laterally into the vocalis muscle. The anterior part of the tumor is then resected by laser surgery in healthy tissue. The resection does not quite reach the anterior commissure on the right side. The tumor is also resected macroscopically in toto towards the subglottic area under visualization. A marginal incision is then made from the lateral resection margin and from the anterior commissure. Sending for frozen section histology. Loading of the tube onto the Kleinsasser B-tube and exposure of the posterior commissure with the posterior part of the tumor. This is then also resected in the same way as for the esophagus. The vocal process is deepithelialized dorsally, and there is no evidence of tumour infiltration. After tumor resection, microscopically in healthy tissue, a marginal section is also taken from the lateral part of the posterior right glottis, from the posterior commissure and from the vocal process. All marginal histologies are examined using frozen section histology. The frozen section histology shows that all marginal sections are tumor-free, so that an R0 resection can be assumed. Careful removal of the instruments without damaging the teeth in the edentulous maxilla. End of the operation and transfer of the patient to anesthesia. Conclusion: Endoscopic transoral laser surgical chordectomy on the right side, for glottic laryngeal carcinoma cT1 right.