Clinical Study of Inverted Papilloma of the Nose and Paranasal Sinuses / 대한이비인후과학회지

ABSTRACT

BACKGROUND: Inverted papilloma is a benign sinonasal tumor which is locally aggressive and has a significant malignant potential. Complete en bloc excision via lateral rhinotomy and medial maxillectomy has been the mainstay in the treatment in majority of patients. OBJECTIVES: The aim of this study is to evaluate clinical features and outcomes of surgical treatment according to various surgical approaches(external approach vs transnasal endoscopic approach) in the treatment of inverted papilloma of the nose and paranasal sinuses. MATERIALS AND METHOD: We retrospectively examined 24 cases of inverted papilloma of the nose and paranasal sinuses treated in our department from January 1990 to April 1995. We reviewed clinical features, radiologic findings, operative findings, association with malignancy, and outcomes of various surgical approaches. RESULTS: Fifteen patients underwent surgical excision. Of this patients followed up for at least 18 months, lateral rhinotomy was performed in 10 patients, midfacial deglobing in 1 patient and endoscopic surgery in 3 patients. The most common symptoms were nasal obstruction(93.3%) and nasal discharge(80.0%). Ten cases(66.7%) had history of previous nasal surgery. The lateral nasal wall was most frequent site of tumor involvement and concurrent involvement of the adjacent paranasal sinuses was observed in 11 cases. No recurrence was observed both external approach and transnasal endoscopic surgery. CONCLUSION: The optimal management of inverted papilloma of nose and paranasal sinuses is complete excision of tumor and choice of adequate surgical approach(external approach or transnasal endoscopic approach).