<qa>  What type of cancer is stage IIIB or IV?- aplastic anemia, multiple myeloma, myelodysplastic syndrome, acute myeloid leukemia, stage IIIB or IV lung cancer, mesothelioma andor stage IIIB or IV gastrointestinal cancer pancreatic, biliary, esophageal, gastric, hepatocellular, colon, stage IV melanoma 