text: The stage of a cancer is a descriptor (usually numbers I to IV) of how much the cancer has spread.  The stage often takes into account the size of a tumor, how deep it has penetrated, whether it has invaded adjacent organs, how many lymph nodes it has metastasized to (if any), and whether it has spread to distant organs.  Staging of cancer is important because the stage at diagnosis is the most powerful predictor of survival, and treatments are often changed based on the stage.
option_0: Cancer staging
option_1: Breast cancer laboratory tests
option_2: Breast cancer staging
option_3: Lymphadenopathy classification
option_4: Breast cancer physical examination
option_5: Paget's disease of the breast staging
option_6: Endometrial cancer staging
option_7: Lymphadenopathy physical examination