[Questionable indication for radical neck dissection in carcinomas of the tongue and floor of the mouth. Results after 4 years].

Based on a 4-year-study the use of ultrasound and preoperative treatment of the neck area is evaluated. The results suggest that there is no indication for radical neck dissection. The therapeutic approach described resulted in a considerable increase in the survival rate during the first 4 years as against the figures published by the DOSAK in 1988.