Surgery Alone Verus Sugery Combined with Dose-reduced Radiotherapy for Newly Diagnosed Stage I Nasopharyngeal Carcinoma
The goal of this clinical trial is to compare the efficacy and safety of endoscopic nasopharyngectomy combined with retropharyngeal lymph nodes dissection plus bilateral upper neck lymph node dissection or plus postoperative low-dose radiotherapy in newly diagnosed stage Ⅰ nasopharyngeal carcinoma.