[A patient positioning system in head and neck irradiation].

A holding system is presented which allows a good, easy, and reproducible positioning of the patient in percutaneous head and neck radiotherapy. The patients are lying comfortably on a neck support and are fixed in such a way that they are not able to turn in a lateral or longitudinal direction. The distance chin-jugulum can be easily determined by an integrated measuring tape. Due to the use of UV ink and UV lamps, the field marking of the patient's skin cannot be seen in the spectrum of visible light.