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Cancer Screening

Can cancer be prevented?

We are often asked by patients if there is anything they could have done to prevent cancer. While ways to absolutely prevent cancer have not been proven, there is evidence of things you can do to significantly reduce your risk of developing the disease. They include:

  • Not smoking
  • Consuming a healthy diet
  • Maintaining a healthy weight
  • Getting plenty of exercise
  • Wearing sunscreen

Cancer screening tests are used to detect cancer, even before you might have symptoms.

While cancer screening may not prevent the disease, it is one of the most important things you can do for your health. This is because screening aims to find cancer early when the chances of successful treatment are highest.

Because of extensive research and advances in technology, doctors can now order tests to screen for several types of cancer, which is especially important for people at a higher risk of developing the disease.

The screening tests shown below are for average-risk individuals. Screening for higher-risk individuals will usually begin at an earlier age.

Cancer screenings include:

Breast Cancer: At age 40, mammograms have been proven to be the most effective way to screen for breast cancer. The American Cancer Society's Facts & Figures 2019 report indicates that breast cancer death rates declined by 40% from 1989 to 2016 among women. The progress is attributed to improvements in early detection.

Prostate Cancer: PSA (prostate-specific antigen) screening is a blood test that detects protein made by cells in the prostate gland. A DRE (digital rectal exam) is a physical examination that a doctor does to feel any irregularities in the prostate gland. Beginning at age 45, the National Comprehensive Cancer Network recommends that healthy men with average risk discuss the benefits of a baseline PSA screening test and a DRE (digital rectal exam) with their primary care physician. Both types of screening are used to detect changes or abnormalities which may be present. Other factors that are also considered, including a patient's age and personal and family health history, will help their physician determine the need and frequency for additional follow-up testing. 

Cervical Cancer: Pap tests can detect abnormal cells in a woman's cervix that might turn into cancer, and they can find cervical cancers early. Screening women for HPV (human papillomavirus) has also been effective because the virus is responsible for the cell changes that cause cervix cancer. When detected early, this cancer has a greater chance of being cured. Cervical screening should begin at age 21.

Colorectal Cancer: Several tests are used to help detect colon cancer, but the gold standard is colonoscopy. This screening test can find precancerous polyps, and they can be removed before they become cancer. In addition, the colonoscopy examines the entire colon and can find colon cancer at an earlier stage when there is a higher chance of successful treatment.

The American Cancer Society's Facts & Figures 2019 report shows that colorectal cancer death rates declined by 53% from 1970 to 2016 among men and women because of increased screening and improvements in treatment. However, in adults younger than age 55, new cases of colorectal cancer have increased by almost 2% per year since the mid-1990s. In 2018, the ACS lowered the recommended age for colorectal cancer screening to age 45 from the previous recommendation at age 50.

Lung Cancer: The National Comprehensive Cancer Network recommends that patients discuss their health history and individual risk factors with their physician to determine if lung cancer screening with a low-dose CT scan is recommended. This includes individuals who are in one of these groups:

  • Group 1 individuals aged 55 to 77 with a 30 or more pack-year history who currently smoke or quit less than 15 years ago

  • Group 2 individuals aged 50 or older with a 20 or more pack-year history who are either current or former smokers with at least one additional risk factor such as a personal history of lung cancer, family history of lung cancer in first-degree relatives, radon exposure, and occupational exposure

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(520) 276-6047
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(520) 689-7022

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