Stage IV gallbladder cancer
This stage is divided into two subcategories:
- Stage IVA: The cancer has spread into the blood vessels leading to the liver, and/or has extended to a nearby organ other than the liver. Cancer cells may have reached nearby lymph nodes, but they have not reached distant organs.
- Stage IVB: Cancers at this stage are the most advanced. Cancer cells have either spread to lymph nodes farther away from the gallbladder, or they have spread to distant organs.