Carcinomas result from altered epithelial cells, which cover the
surface of our skin and internal organs. Most cancers are
carcinomas.
• Sarcomas result from changes in muscle, bone, fat, or
connective tissue.
• Leukemia results from malignant white blood cells.
• Lymphoma is a cancer of the lymphatic system cells that derive
from bone marrow.
• Myelomas are cancers of specialized white blood cells that
make antibodies.