[Clinical analysis of endonasal endoscopic surgery in esthesioneuroblastoma].

To investigate the clinical characteristics of esthesioneuroblastoma and the efficacy of endonasal endoscopic surgery combined with radiotherapy/chemotherapy. The clinical and surgical data of 17 patients with esthesioneuroblastoma who underwent endonasal endoscopic surgery in our department from September 2009 to June 2023 were retrospectively analyzed. Among all patients, the modified Kadish stage B was identified in 4 patients, C in 10 patients, and D in 3 patients. Ten of them underwent endonasal endoscopic surgery without neck dissection in one day, whose average operation time is （5.2±2.5） hours and average blood loss is （192±162）mL. Skull base reconstructions were performed in 15 patients, postoperative complications were observed in 3 patients, and negative margins were obtained in 13 patients. All 17 patients were followed up for an average of （49.7±40.2） months. Three patients died and 6 had recurrence and/or metastasis. The 1-year, 2-year and 5-year overall survival rates were 88.2%, 80.2%, and 80.2%, respectively, and the 1-year, 2-year and 5-year disease-free survival rates were 82.4%, 82.4%, and 50.8%, respectively. The 2-year overall survival rates of patients with negative and positive margins were 100% and 25%, respectively, while the 2-year disease-free survival rates were 61.5% and 25.0%, respectively. Endonasal endoscopic surgery combined with radiotherapy/chemotherapy can achieve satisfactory effect in esthesioneuroblastoma, and the prognosis of patients with positive margins is poor.