A few weeks ago, a large progressive mass in the area of the left middle third of the tongue. Clinically macroscopically highly suspected malignancy. In the preoperative ultrasound V.a. cN0 neck status. In the noxenanamnesis approx. 75 py. Due to the symptoms and clinical findings as well as the positive noxae history, there is now an indication for panendoscopy and excisional biopsy in the area of the left tongue. The patient had ample opportunity to ask questions about the procedure before the operation.