To analyze the clinical features and discuss the treatment of ossifying fibroma in the nasal cavity and sinuses. The patients were performed surgical treatment after admission. 6 cases were treated by endoscopic transnasal approach with image guidance system to resect the mass, 8 cases were operated by simple endoscopic approach, tumor resection was performed via endoscopic surgery with external approach in 2 cases, and endoscopic surgery combined with modified Caldwell-Luc procedure in 1 case. 1 patient was operated through labiolingual groove approach. The intraoperative blood loss of ossified fibroma patients was large, with an average blood loss of 550ml. All the patients were followed up for 6 months to 8 years, 15 patients with complete resection had no recurrence after surgery, and 3 patients with partial resection survived with tumor. Ossifying fibroma in the nasal cavity and sinuses can be completely resected by nasal endoscopic surgery with less trauma and good effect. Transnasal endoscopic surgery assisted by image navigation system can protect important structures in lesions involving orbital cardboard and anterior skull base. Nasal endoscopic surgery combined with small eyebrow incision approach is feasible for ossifying fibroma invading frontal sinus. Ossifying fibroma, which requires adequate preoperative evaluation and blood preparation is prone to bleeding, and lesions with rich blood supply need preoperative interventional therapy.Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.
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