Abstract: Objective To explore the safety and effectiveness of diagnosis and endoscopic surgical treatment of congenital nasal sinus masses in children. Methods A retrospective analysis of the clinical data of 24 congenital nasal sinus mass cases in children admitted to the Xinhua Hospital, which is affiliated with the Shanghai Jiao Tong University School of Medicine. Preoperative nasal endoscopy, sinus CT, and MRI examination were performed, and all patients underwent endoscopic mass resection, with follow-up of surgical outcomes. Results Of the 24 cases, 17 were benign, consisting of 8 meningocele cases, 3 ossifying fibroma cases, 2 nasal chondromesenchymal hamartoma cases, 1 case of poor bone fiber structure, 1 myofibroma case, 1 teratoma case, and 1 capillary hemangioma case. Meanwhile, the remaining 7 cases were malignant, consisting of 2 B-cell lymphoma cases, 2 embryonal rhabdomyosarcoma cases, 1 mesenchymal chondrosarcoma case, 1 olfactory neuroblastoma case, and 1 mucoepidermoid carcinoma case. Aside from the two embryonal rhabdomyosarcoma cases, the one mesenchymal chondrosarcoma case and the one olfactory neuroblastoma case had passed away; thus, only the remaining 20 of the 24 cases were completely resected. No recurrence was observed in 1.5-7.5 years in the remaining cases. Conclusion There were more benign nasal sinus mass cases in children, which were usually resolved with complete surgical resection. Preoperative endoscopic examination, thin-layer CT, and MRI examination were found to be necessary for diagnosis, surgical procedure formulation, and risk assessment. Moreover, nasal endoscopic surgery can completely remove most of these lesions, with the advantages of small trauma, clear vision, and good clinical results.

Key words: Nasal cavity tumor, Sinus tumor, Children, Nasal endoscopic surgery, Treatment