The TNM staging system is one of the most commonly used methods for cancer staging. It stands for Tumor (T), Nodes (N), and Metastasis (M). Each component is assigned a number to describe the extent of the disease:
T (Tumor): Describes the size and extent of the primary tumor. N (Nodes): Indicates whether the cancer has spread to regional lymph nodes. M (Metastasis): Refers to whether the cancer has spread to distant parts of the body.
For example, a designation of T2N1M0 might indicate a medium-sized tumor with limited lymph node involvement but no distant metastasis.
