Objective To study the expression of vascular endothelial growth factor (VEGF) in sinonasal inverted papilloma (NIP) and nasal polyps (NP) and its clinical significance.

• 摘要目的探讨血管内皮生长因子(VEGF)在鼻内翻性乳头状瘤(NIP)及鼻息肉(NP)中的表达及其意义。