目的：探讨CD 34在人鼻息肉组织中的表达及微血管密度的临床意义。
Objective: To study the clinicopathologic significance of microvessel density and the expression of CD34 in human nasal polyps.
胆囊结石，胆囊息肉，肝血管瘤。
Cholecystlithiasis, polyp of gallbladder, hemangioma of liver.
结果：血管内皮生长因子及其受体在正常鼻粘膜呈弱阳性，在鼻息肉呈强阳性表达。
Result: The expression of VEGF and VEGFR was weak in normal nasal mucous, and very strong in nasal polyps.
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