Metastasis is one of the features of cancer. It is an important stage of tumor progression.

肿瘤转移是恶性肿瘤生物学特征之一，是恶性肿瘤演进过程中的危险阶段。

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Tea polyphenols and tea pigment have many biological activities. They can inhibit tumor cell growth at the each stage of tumor development.

茶多酚与茶色素具有多种生物活性，除了抗氧化等作用外，还可以在肿瘤发生的各个阶段产生特定作用，从而抑制肿瘤细胞生长。

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Methods: The correlation of FOBT with gross blood stool, carcinoembryonic antigen (CEA), tumor site, histopathologic type and the stage of tumor was analyzed in 382 patients with colorectal cancer.

方法：对382例结直肠癌患者粪便隐血试验与肉眼血便、癌胚抗原（CEA）、肿瘤部位、病理分型、肿瘤分期的关系进行分析。

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In stage IIIB breast cancer, a tumor of any size has spread to tissues near the breast the skin and chest muscles and may have spread to lymph nodes within the breast or under the arm.

CNN: Breast cancer staging

Onyx has data showing that Sorafenib slows tumor growth, compared with a placebo, but in late-stage trials only 2% of patients had their tumors shrink enough to be counted in the response rate.

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