Doctors utilize a system which uses the letters T, N, and M to describe a tumor's size, its presence in the immune system's lymph nodes, and whether it has metastasized, or spread, to other organs.
医生使用一种系统,用字母 T、N 和 M 分别描述肿瘤的大小、在免疫系统淋巴结中的存在情况、
是否
移或扩散到其他器官。