Liu Z, et al. - Via retrospectively analyzing the records of 131 patients (mean age 17.6 ± 6.8, range 9–71 years) with histologically proven juvenile nasopharyngeal angiofibroma (JNA), researchers determine the risk factors for residual disease and usual sites for these residual tumors. Data reported that the residual disease prevalence was 16.8%. Risk factors associated with recurrence of JNA included tumor stage, intraoperative bleeding, and year of operation. The most frequent locations for residual tumor were the pterygoid canal, pterygoid process, and pterygopalatine foramen. The pterygoid canal, petrygoid process, and pterygopalatine foramen should be given special attention to surgical management. In the first two days after primary surgery, contrast-enhanced CT and MRI are effective tools for assessing complete JNA excision. The key to avoiding residual JNA may be careful exploration of these areas.