Mammogram is one form of screening and testing a patient for breast cancer. A screening mammogram is an x-ray of the breast, used to detect breast changes in women who have no signs or symptoms of breast cancer. A colonoscopy is an examination of the rectum and entire colon using a lighted instrument called a colonoscope. Magnetic Resonance Imaging (MRI) is one of the most common tests for cancer. It uses computers and radio waves to detect cancer. Computerized axial tomography scanning (CAT scan) is