metastasis
noun [ C or U ] medical specialized uk/meˈtæs.tə.sɪs/ us/məˈtæs.tə.sɪs/ metastases uk/meˈtæs.tə.siːz/ us/məˈtæs.tə.siːz/
（癌细胞）转移
the spread of a disease, especially cancer, from the place where it started in the body to other areas
Patients with kidney metastasis typically have cancerous cell growth in both kidneys. 如果患者的癌细胞转移到了肾脏，那么通常两只肾内都有癌细胞。