The patient has had a pronounced oral floor of the tongue leukoplakia on the left side since 2012, which has already been removed several times. In addition, the patient has a history of papillary microcarcinoma of the thyroid gland on the right with complete thyroidectomy and central neck dissection in 2013 and has noticed a mass under the tongue since <2016>. Mirror findings revealed an exophytic mass on the anterior floor of the mouth on the left side in addition to several leukoplakic changes. There was also an exophytic mass in the piriform sinus on the left side, hence the indication for the above-mentioned procedure. In the tumor conference, the surgical procedure was concluded as the patient was not suitable for primary radiochemotherapy due to renal insufficiency.