Stage I: The cancer is smaller than 5 cm and has not spread outside of the adrenal gland.
Stage II: The cancer is larger than 5 cm and has not spread outside of the adrenal gland.
Stage III: The cancer has spread into the fat surrounding the adrenal gland or has spread to lymph nodes or other organs near the adrenal gland.
Stage IV: The cancer has spread to other parts of the body.
