Objective To observe the expression of thymidylate synthase(TS)and thymidine phosphorylase(TP)in colorectal carcinoma and its relations with clinicopathological characteristics and prognosis.

• 目的观察结直肠癌中胸苷酸合酶(TS)、胸苷磷酸化酶(TP)的表达情况及其与患者年龄、性别、分化程度、淋巴结转移及预后的关系,探讨TS、TP的临床病理学意义。