Figure 3From: Compromised quality of life in adult patients who have received a radiation dose towards the basal part of the brain. A case-control study in long-term survivors from cancer in the head and neck regionThe sagittal view of the dose distribution of the external beam of patients with cancer of the epipharynx. Volumes of interest and isodose lines are presented. Abbreviations: 2= Gross target volume (GTV), 3=Planning target volume (PTV) 4=medulla, 5= pituitary, 6= hypothalamus.Back to article page