Endoscopic resection of sinonasal ossifying fibroma: 31 cases report at an institution.

A retrospective analysis of 31 lesions undergoing endoscopic surgery between 2006 and 2012 was undertaken. The data of patients' demographics, clinical features, operative parameters, follow-up period, and treatment outcomes were collected. A total of 31 patients were reviewed and consisted of 19 females and 12 males. The median age was 23 years (range 6-55). The surgical strategy included the exclusive endoscopic approach in 26 cases, endoscopic approach with external approach in 5 cases. Twenty-two cases were achieved completely resection and nine cases were subtotally resected. During the follow-up period (median: 25 months, range 4-80 months), 4 cases developed recurrences and there was no evidence of recurrence in the additional 27 cases included 8 cases living with no progressively growing residual tumor and 19 cases living without diseases. Our experience indicates that the endoscopic approach to manage ossifying fibroma of the nose and paranasal sinuses is safe and effective. However, more cases and a longer period of follow-up are required to define its long-term therapeutic effect.