PHILADELPHIA (CBS) — Doctors at Einstein Medical Center are using a new tool to find cancerous tissue during breast cancer surgery.

The Margin Probe System uses electromagnetic waves to detect cancerous tissue around malignant tumors, while doctors are performing lumpectomies.

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Dr. Lisa Jablon, director of breast surgery at Einstein Medical Center, says it should prevent follow-up surgeries when tissue taken in the operation is found to be cancerous during lab testing days later.

“When you come in for a lumpectomy, historically, the chance of having a positive margin, one that’s not clear is anywhere from 10 to 50 percent,” she says, “so there’s a high chance, they average about a third of women, may have to have a second surgery to clean up an edge around their cancers.

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The probe lights up when cancerous tissue is found so doctors can remove it and be assured the tissue around the surgical site is cancer free.


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