Symptom burden analysis. A) Patients in the mild symptom burden cluster, having tumor categories T0 and T1 (current patient, 340, is highlighted in red), with all other patients faded. B) The anatomical sketch shows that the mouth and neck areas are affected by the selected symptoms (mucus, breath) for the current patient. C) The patient’s ratings are shown by black marks. In this case, the patient had a low rating for mucus at the first assessment (0 weeks), while at the end of the observation period (18 months post-treatment) the rating increased. D) Filament plots encoding symptom trajectories for the selected symptoms, for the patients filtered in the scatterplot. One filament per patient shows the temporal development for that symptom; black filaments mark the current patient, confirming the mucus rating increase in the late stage.