[Application of endoscopic nasal lateral wall dissection in lesions of the maxillary sinus].

OBJECTIVE: To investigate the application of endoscopic nasal lateral wall dissection in lesions of the maxillary sinus. METHOD: Ten hospitalized patients with the maxillary sinus lesions were treated with the endoscopic nasal lateral wall dissection. RESULT: All 10 patients were unilateral invasion. Among them, 7 cases were inverted papilloma, 2 cases were recurrent antrochoanal polyps, 1 case was sinusal tooth. The tumors and antrochoanal polyps originated from the every part of the maxillary sinus wall during operation, especially from the anterior and media wall. During 10-62 months follow-up,epithelization of nasal occured and the shape of inferior turbinate was well. All of them had no epiphora. CONCLUSION: Endoscopic nasal lateral wall dissection can remain the function of nasal lacrimal duct and nasal cavity,and may provide a new minimally invasive approach for complete resection of lesions of nasal cavity and the maxillary sinus.