Breast Cancer Screening - To Learn More About Breast Cancer and Pregnancy
For more information from the National Cancer Institute about breast cancer and pregnancy, see the following:Breast Cancer Home PageWhat You Need to Know About™ Breast CancerBreast Cancer PreventionBreast Cancer ScreeningSurgery Choices for Women with DCIS or Breast CancerDrugs Approved for Breast CancerReproductive History and Breast Cancer RiskFor general cancer information and other resources from the National Cancer Institute, see the following:What You Need to Know About™ CancerUnderstanding Cancer Series: CancerCancer StagingChemotherapy and You: Support for People With CancerRadiation Therapy and You: Support for People With CancerCoping with Cancer: Supportive and Palliative CareQuestions to Ask Your Doctor About CancerCancer LibraryInformation For Survivors/Caregivers/Advocates
Breast Cancer Screening - What is screening?
Screening is looking for cancer before a person has any symptoms. This can help find cancer at an early stage. When abnormal tissue or cancer is found early,it may be easier to treat. By the time symptoms appear,cancer may have begun to spread. Scientists are trying to better understand which people are more likely to get certain types of cancer. They also study the things we do and the ...
Breast Cancer Screening - General Information About Breast Cancer Treatment and Pregnancy
Breast cancer is the most common cancer in pregnant and postpartum women,occurring in about 1 in 3,000 pregnant women. The average patient is between 32 to 38 years of age and,with many women choosing to delay childbearing,it is likely that the incidence of breast cancer during pregnancy will increase. Breast cancer pathology is similar in age-matched pregnant and nonpregnant women. Hormone ...
Genetics of Breast and Ovarian Cancer (PDQ®): Genetics - Health Professional Information [NCI] - About This PDQ Summary
About PDQPhysician Data Query (PDQ) is the National Cancer Institute's (NCI's) comprehensive cancer information database. The PDQ database contains summaries of the latest published information on cancer prevention, detection, genetics, treatment, supportive care, and complementary and alternative medicine. Most summaries come in two versions. The health professional versions have detailed information written in technical language. The patient versions are written in easy-to-understand, nontechnical language. Both versions have cancer information that is accurate and up to date and most versions are also available in Spanish.PDQ is a service of the NCI. The NCI is part of the National Institutes of Health (NIH). NIH is the federal government's center of biomedical research. The PDQ summaries are based on an independent review of the medical literature. They are not policy statements of the NCI or the NIH.Purpose of This SummaryThis PDQ cancer information summary has current
Breast Cancer Screening - nci_ncicdr0000062855-nci-header
This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http://cancer.gov or call 1-800-4-CANCER.Genetics of Breast and Ovarian Cancer
Genetics of Breast and Ovarian Cancer (PDQ®): Genetics - Health Professional Information [NCI] - Appendix of Randomized Controlled Trials
Health Insurance Plan, United States 1963 [1,2]Age at entry: 40 to 64 years.Randomization: Individual, but with significant imbalances in the distribution of women between assigned arms, as evidenced by menopausal status (P < .0001) and education (P = .05). Sample size: 30,000 to 31,092 in study group and 30,565 to 30,765 in control group. Consistency of reports: Variation in sample size reports. Intervention: Annual two-view mammography (MMG) and CBE for 3 years. Control: Usual care. Compliance: Nonattenders to first screening (35% of the screened population) were not reinvited.Contamination: Screening MMG was not available outside the trial, but frequency of CBE performance among control women is unknown.Cause of death attribution: Women who died of breast cancer that had been diagnosed before entry into the study were excluded from the comparison between the screening and control groups. However, these exclusions were determined differently
Breast Cancer Screening - Description of the Evidence
The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.Editorial changes were made to this summary.This summary is written and maintained by the PDQ Screening and Prevention Editorial Board, which is editorially independent of NCI. The summary reflects an independent review of the literature and does not represent a policy statement of NCI or NIH. More information about summary policies and the role of the PDQ Editorial Boards in maintaining the PDQ summaries can be found on the About This PDQ Summary and PDQ NCI's Comprehensive Cancer Database pages.
Genetics of Breast and Ovarian Cancer (PDQ®): Genetics - Health Professional Information [NCI] - Harms of Screening Mammography
Mammography screening may be effective in reducing breast cancer mortality in certain populations, but it can pose harm to women who participate. The limitations are best described as false-positives (related to the specificity of the test), overdiagnosis (true-positives that will not become clinically significant), false-negatives (related to the sensitivity of the test), discomfort associated with the test, radiation risk and anxiety.False-Positives Leading to Possible Additional InterventionsThe specificity of mammography (refer to the Breast Cancer Screening Concepts section of this summary for more information) affects the number of additional interventions due to false-positive results. Even though breast cancer is the most common noncutaneous cancer in women, fewer than 5 per 1,000 women actually have the disease when they are screened. Therefore, even with a specificity of 90%, most abnormal mammograms are false-positives. Women with abnormal
Breast Cancer Screening - Stages of Male Breast Cancer
After breast cancer has been diagnosed, tests are done to find out if cancer cells have spread within the breast or to other parts of the body.After breast cancer has been diagnosed, tests are done to find out if cancer cells have spread within the breast or to other parts of the body. This process is called staging. The information gathered from the staging process determines the stage of the disease. It is important to know the stage in order to plan treatment. Breast cancer in men is staged the same as it is in women. The spread of cancer from the breast to lymph nodes and other parts of the body appears to be similar in men and women.The following tests and procedures may be used in the staging process:Sentinel lymph node biopsy: The removal of the sentinel lymph node during surgery. The sentinel lymph node is the first lymph node to receive lymphatic drainage from a tumor. It is the first lymph node the cancer is likely to spread to from the tumor. A radioactive substance and/or
Breast Cancer Screening - General Information About Breast Cancer
Breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast. The breast is made up of lobes and ducts. Each breast has 15 to 20 sections called lobes,which have many smaller sections called lobules. Lobules end in dozens of tiny bulbs that can produce milk. The lobes,lobules,and bulbs are linked by thin tubes called ducts. Anatomy of the breast,showing ...