Panendoscopy was first performed by <CLINICIAN_NAME>. No abnormalities except for the previously described mass in the area of the tongue margin. Unfortunately, there is a tear in the mucosa in the glossotonsillar groove on the right side due to the small esophageal tube. Entering with the flexible esophagoscope and endoscopy into the stomach. No abnormalities in either the esophagus or the stomach. PEG insertion using the thread pull-through method with good diaphanoscopy and no complications. Positioning of the head and insertion of the spandex. Snaring of the tongue and takeover of the operation by <CLINICIAN_NAME>. Marking the edges of the incision using bipolar forceps and cutting around and dissecting out the tumor with a safety margin of 1 cm. The specimen is sent to the pathology department on cork. Removal of representative marginal samples. The marginal samples show a carcinoma in situ of the mucosa on the dorsal side. At the end, a resection and another marginal sample are taken, which are sent for final histology. Repositioning for neck dissection on the left side. Sterile washing and draping. Injection of Ultracaine mixture beforehand. Skin incision in a transverse skin fold. Exposure of the platysma. Separation of the platysma. Formation of a platysmal flap cranially. Exposure of the omohyoid muscle, the sternocleidomastoid muscle, the submandibular gland, the facial vein and the cervical vascular sheath. Free preparation of the internal jugular vein. Release of the medial neck block. Exposure of the accessorius and release of the neck levels II a to IV while sparing the plexus branches. Evacuation of neck levels Ia and b, as the tumor extends very far anteriorly and also partially to the anterior floor of the mouth. Insertion of a Redon drainage. Two-layer wound closure. Completion of the procedure without complications.