Abstract:Objective To explore the clinical experience in the diagnosis and treatment of solitary fibrous tumor (SFT) of the nasal cavity and sinuses. Methods The clinical characteristics, diagnosis and treatment of SFT were discussed by retrospectively analyzing the data of the patient with SFT in the nasal cavity and sinuses in combination with domestic and foreign literatures. Preoperative CT of this patient indicated that the mass nature of the left nasal cavity and paranasal sinus mass was uncertain, and nasal polyps were possible. There was a large amount of bleeding in the nasal cavity after the nasal biopsy. Immediately, the neoplasm of left nasal and paranasal sinuses was removed by endoscopy under general anesthesia. At the same time, hemostasis and tamponade were treated. Results Postoperative pathology confirmed SFT of nasal cavity and sinus. Postoperatively, the patient recovered well, and no recurrence was observed in the reexamination half a year after the operation. Conclusions SFT is a type of mesenchymal neoplasm that usually occurs in the pleura, but rarely occurs in the nasal cavity and sinuses.Imaging has only auxiliary significance for the diagnosis of neoplasms in the nasal cavity. Clinicians should make a correct diagnosis and treatment plan based on the patient's medical history, clinical manifestations and pathological examination results.