Methods The expression of VEGF in 11 normal adrenal gland, 24 benign adrenal pheochromocytomas, and 11 malignant pheochromocytomas was detected by immunohistochemistry and in situ hybridization.

• 方法用免疫组化和原位杂交研究24例良性肾上腺嗜铬细胞瘤、11例恶性肾上腺嗜铬细胞瘤及11例正常肾上腺组织中VEGF的表达情况。