Patients with any malignant tumor of T3N1M1 are in advanced stage because M1 represents the occurrence of distant metastasis, and those with distant metastasis are in advanced stage.
Clinical staging is used to describe the growth rate, lymph node metastasis, and degree of distant metastasis of a malignant tumor. The faster the growth rate, the wider the scope of growth and the degree of dissemination, the worse the prognosis of the patient.
To clinically stage a tumor, the following factors are generally considered: tumor size and infiltration depth, denoted by T; regional lymph node accumulation, denoted by N; and the presence of distant metastasis, denoted by M.
The staging of different cancers is inconsistent, but no matter in any tumor, as long as the patient has distant metastasis, it is M1. at this time, most of the patients have already lost the opportunity to be operated, and the staging is basically stage IV, which is often referred to as advanced stage.