Mammographic Diagnosis of Breast Cancer
Early diagnosis of breast cancer and successful treatment have resulted in a significant decrease in death from breast cancer. For a screening test to be effective, it should lead to an earlier diagnosis, in the case of mammography, of breast cancer. The end result of primary or secondary prevention is to reduce mortality from the disease. Finding a cancer earlier may not always benefit the patient. Some women may be diagnosed with metastatic disease but have such small primary tumors that they are hard to detect even pathologically. On the other end of the spectrum, autopsy studies have shown that some women who died from other causes were incidentally diagnosed with breast cancer, postmortem.
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