Benign : Benign (not cancer) tumor cells grow
only locally and cannot spread by invasion or metastasis.
Biopsy : taking out a piece of tissue to see if cancer cells are in it.
Malignant : cells invade neighboring tissues, enter blood vessels, and metastasize to different sites.
Chemotherapy : the use of anti-cancer drugs to treat disease.
Metastasis/Metastasized : the spread of cancer cells from site of origin to distant parts of the body through the lymph system or bloodstream.
Oncologist : a doctor who treats people who have cancer.
Radiation therapy : the use of high-energy rays, like x-rays, to treat cancer disease.
Remission : when signs or symptoms of cancer are all or partly gone.
Stage : tells whether a cancer has spread, and if so, how far.