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目前,全世界癌症患者计有1400万人,每年因癌症死亡约500万人,每年新发病例700万人。世界卫生组织估计,1995年全世界癌症死亡数已达660万人。我国每年有170万人新患癌症,每年因癌而死亡约130万人。在1957年癌症是我国第七位死亡原因,到1990年癌症已是第一位死因。 癌细胞会沿着血管壁等正常细胞的裂隙转移扩散,侵入其它组织体。癌的转移扩散常常会令到外科治疗徒劳无功。日本大阪成人病中心研究所的研究人员,在研究癌的扩散方式方面有所发现,原来癌
At present, there are 14 million cancer patients worldwide. About 5 million people die from cancer each year, and 7 million new cases occur each year. The World Health Organization estimates that the number of cancer deaths in the world reached 6.6 million in 1995. Each year, 1.7 million people in China suffer from new cancers, and about 1.3 million people die from cancer each year. In 1957, cancer was the seventh cause of death in China. By 1990, cancer was the first cause of death. Cancer cells spread and spread along the fissures of normal cells, such as blood vessel walls, and invade other tissues. The spread and spread of cancer often make surgical treatment futile. Researchers at the Osaka Institute of Adult Diseases in Japan have discovered cancer spread and found that