英语语法分析

Results: Of the 3292 ampullary cancer patients, 1301 (40%) underwent resection.

结果：3292例壶腹癌患者中，1301(40%)例患者得到切除。

Ampullary cancer resection rate in more than 75%, 5-year survival rate after surgery than high-pancreatic head cancer.

壶腹癌的切除率在75%以上，术后5年存活率较胰头癌高。

Objective:To study the expression of P16 protein and PCNA in ampullary carcinoma and its relation with its pathological features.

目的：探讨壶腹癌中抑癌基因P16 蛋白与增殖细胞核抗原（PCNA）表达的相关性及其与肿瘤临床病理特征的关系。