Tests are used to screen for different types of cancer.
Some screening tests are used because they have been shown to be helpful both in finding cancers early and in decreasing the chance of dying from these cancers. Other tests are used because they have been shown to find cancer in some people; however, it has not been proven in clinical trials that use of these tests will decrease the risk of dying from cancer.
Nasopharyngeal cancer is a disease in which malignant (cancer) cells form in the tissues of the nasopharynx.
The nasopharynx is the upper part of the pharynx (throat) behind the nose. The pharynx is a hollow tube about 5 inches long that starts behind the nose and ends at the top of the trachea (windpipe) and esophagus (the tube that goes from the throat to the stomach). Air and food pass through the pharynx on the way to the trachea or the esophagus. The nostrils lead into the nasopharynx. An opening...
Scientists study screening tests to find those with the fewest risks and most benefits. Cancer screening trials also are meant to show whether early detection (finding cancer before it causes symptoms) decreases a person's chance of dying from the disease. For some types of cancer, the chance of recovery is better if the disease is found and treated at an early stage.
Information about ongoing clinical trials is available from the NCI Web site.
There is no standard or routine screening test for testicular cancer.
There is no standard or routine screening test used for early detection of testicular cancer. Most often, testicular cancer is first found by men themselves, either by chance or during self-exam. Sometimes the cancer is found by a doctor during a routine physical exam.
No studies have been done to find out if testicular self-exams, regular exams by a doctor, or other screening tests in men with no symptoms would decrease the risk of dying from this disease. However, routine screening probably would not decrease the risk of dying from testicular cancer. This is partly because testicular cancer can usually be cured at any stage. Finding testicular cancer early may make it easier to treat. Patients who are diagnosed with testicular cancer that has not spread to other parts of the body may need less chemotherapy and surgery, resulting in fewer side effects.
If a lump is found in the testicle by the patient or during a routine physical exam, tests may be done to check for cancer. Some tests have risks, and may cause anxiety.
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This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Public Information from the National Cancer Institute
May 28, 2015
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