Keywords Duodenal neoplasms;Small intestinal neoplasms;Basic fibroblast growth factor;Platelet derived growth factor;Thrombospondin 1;Microvessel;

• 十二指肠肿瘤;小肠肿瘤;碱性成纤维细胞生长因子;血小板源生长因子;血小板吸附蛋白1;微血管;