Fig. 1From: Overlapping volumes in re-irradiation for head and neck cancer – an important factor for patient selectionFlow chart of included patients. Abbreviations: HNC - Head and neck cancer. * All patients with a HNC diagnosis, who had at least 2 courses of radiotherapy and at least 1 course of radiotherapy with curative intent, were reviewed in the treatment planning system for inclusion, in order to find relevant patients who had not been recorded in the quality registry. † 1 malignant melanoma, 1 CNS tumour, 2 Merkel cell carcinoma (face). ‡ palliative radiotherapyBack to article page