Therefore, a secondary infiltration or metastasis to the colon and rectum must be excluded before a definite diagnosis of primary colorectal signet ring cell carcinoma can be established.
因此，在原发性结直肠印戒细胞癌明确诊断前必须排除其它器官的直接浸润或转移至结直肠。
2
Objective To evaluate the clinical significance of anti-CEA antibodies in the serum of patients with colorectalcarcinoma.
目的探讨结直肠癌患者血循环中抗-癌胚抗原特异性抗体的存在情况和及其临床意义。
3
Objective To investigate the expression and significance of P73 in colorectalcarcinoma.