American Joint Committee on Cancer (AJCC)

The American Joint Committee on Cancer (AJCC) is an organization that provides a standardized system for classifying cancer stages. This system helps doctors determine how advanced a cancer is, guiding treatment decisions and predicting outcomes. The AJCC publishes the AJCC Cancer Staging Manual, which uses a combination of tumor size, lymph node involvement, and the spread of cancer to other parts of the body—collectively known as the TNM system. This consistent approach aids in research, treatment planning, and communication among healthcare professionals regarding cancer care.