TNM is an internationally recognized cancer staging system. It was originally created by the American Joint Committee on Cancer. The system uses information about the tumour (T), lymph nodes, (N), and metastases (M) to provide an overall cancer stage. The ‘p’ means the information was provided by your pathologist after examining your tissue sample under the microscope.
The TNM staging system provides important information about how the disease with behave over time. Your treating doctors will combine the information in the pTNM with other medical information such as imaging results to determine your overall clinical stage (cTNM) and plan your care.