Influence of postoperative radiotherapy target volumes in unilateral head and neck carcinoma of unknown primary: A multicentric study using propensity score

Highlights: • Management of HNCUP remains controversial due to the lack of randomised trials. • Comparing postoperative unilateral nodes vs bilateral nodes + pan mucosal irradiation. • A propensity score was built to reduce differences between groups. • OS, SS and LRFS did not differ significantly between the groups. To compare the impact of two radiation modalities on loco-regional control, survival and tumour emergence, after node dissection for an unilateral head and neck carcinoma of unknown primary (HNCUP).