Metastasis (M)

Metastasis (M) refers to the process when cancer cells break away from the original tumor and travel through the bloodstream or lymphatic system to form new tumors in other parts of the body. It's a key factor in determining how advanced and serious the cancer is. The presence of metastasis often indicates a more complex disease that may require more comprehensive treatment. Detecting metastasis helps doctors plan the most effective approach to manage and treat the cancer.