3. Postoperative adjuvant chemoradiotherapy
Postoperative radiotherapy alone was performed in 70 cases, whereas
postoperative concurrent chemoradiotherapy was performed in 18 cases.
The target areas of radiotherapy included the primary focus and the
cervical lymphatic drainage area. All patients were treated with
intensity-modulated radiotherapy (IMRT). The dose of radiotherapy was
50–66 Gy/25–33 f, 1.8–2.0 Gy/f, 5 f/W. The concurrent chemotherapy
regimen was combined chemotherapy based on cisplatin.