What should I know about bone cancer staging?

What should I know about bone cancer staging?

Staging is determined by the size and location of the tumor, and whether or not cancer has spread to other areas. Primary bone cancer is categorized into four stages:

• Stage 1: The tumor is low-grade, and the cancer cells are still localized.
• Stage 2: The cancer cells are still localized, but the tumor is high-grade.
• Stage 3: The tumor is high-grade and cancer has spread to other areas within the same bone.
• Stage 4: Cancer had spread from the bone to other areas of the body, such as the lungs or liver.