乳腺癌的TNM分期系统 分期 (Stage) TNM组合(TNM grouping) Stage 0 Tis N0 M0 Stage I T1 N0 M0 Stage IIA T0 N1 M0 T1 N1 M0 T2 N0 M0 Stage IIB T2 N1 M0 T3 N0 M0 Stage IIIA T0 N2 M0 T1 N2 M0 T2 N2 M0 T3 N1 M0 T3 N2 M0 Stage IIIB T4 N0-N2 M0 Stage IIIC 任何T N3 M0 Stage IV 任何T 任何N M1