The clinical classification systems and surgical methods for nasal inverted papilloma / 临床耳鼻咽喉头颈外科杂志

Nasal inverted papilloma (NIP) is one primary benign lesion that occurs in the nasal cavity and paranasal sinuses. In this paper, several clinical classifications of NIP were summarized. The most important classification, which was developed by Krouse in 2000, and endoscopic technique was applied to treat NIP in different Surgical methods.