Classified

There are five broad groups that are used to classify cancer.

• Carcinomas are characterized by cells that cover internal and external parts of the body such as lung, breast, and colon cancer.
• Sarcomas are characterized by cells that are located in bone, cartilage, fat, connective tissue, muscle, and other supportive tissues.
• Lymphomas are cancers that begin in the lymph nodes and immune system tissues.
• Leukemias are cancers that begin in the bone marrow and often accumulate in the bloodstream.
• Adenomas are cancers that arise in the thyroid, the pituitary gland, the adrenal gland, and other glandular tissues.