the study of tumors and cancer
originate in the bone marrow, lymphatic system and other cells dealing with the blood and immune system.
originate in solid tissues other than the bone amrrow, lymphatic system, and others cells dealing with the blood and immune system.
mass or swelling produced by adnormal cell growth and division.
tumor that seldomly threatens an person's life and be surgically removed.
can no longer respond to normal control mechanisms.