Cancer A disease in which abnormal cells divide uncontrollably and destroy body tissue.

Breast cancer A cancer that forms in the cells of the breasts.

Prostate cancer A cancer in a man's prostate, a small walnut-sized gland that produces seminal fluid.

Basal cell cancer A type of skin cancer that begins in the basal cells.

Melanoma The most serious type of skin cancer.

Colon cancer A cancer of the colon or rectum, located at the digestive tract's lower end.

Lung cancer A cancer that begins in the lungs and most often occurs in people who smoke.

Leukemia A cancer of blood-forming tissues, hindering the body's ability to fight infection.

Lymphoma A cancer of the lymphatic system.