Science Daily - When women undergo lumpectomies to remove breast cancer, doctors try to remove all the cancerous tissue while conserving as much of the healthy breast tissue as possible.
But currently there's no reliable way to determine during surgery whether the excised tissue is completely cancer-free at its margins -- the proof that doctors need to be confident that they removed all of the tumor. It can take several days for pathologists using conventional methods to process and analyze the tissue.
That's why between 20 and 40 percent of women have to undergo second, third or even fourth breast-conserving surgeries...>>>
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