For the first time, doctors have used stem cells from liposuctioned fat to fix breast defects in women who have had cancerous lumps removed.
The approach is still experimental, but holds promise for millions of women left with cratered areas and breasts that look very different from each other after cancer surgery. It also might be a way to augment healthy breasts without using artificial implants.
So far, it has only been tested on about two dozen women in Japan. But doctors in US say it has great potential.
"This is a pretty exciting topic right now in plastic surgery," said Dr Karol Gutowski of the University of Wisconsin-Madison.
"There are people all over the country working on this."
The Japanese study was reported on Saturday at the San Antonio Breast Cancer Symposium. The company that developed the treatment, Cytori Therapeutics, plans larger studies in Europe and Japan next year.
More than 100,000 women have lumps removed each year in the US. These operations, lumpectomies, often are done instead of mastectomies, which take the whole breast. But they often leave deformities because as much as a third of a woman’s breast may be removed.
"It’s almost a euphemism" to call it lumpectomy, said Dr Sydney Coleman, plastic surgeon at New York University who has consulted for Cytori and is interested in stem cell approach.
The defect "initially may not be as noticeable" but it often gets worse, especially if the woman also has radiation treatment, said Dr Sameer Patel, a reconstructive surgeon at Fox Chase Cancer Centre in Philadelphia.
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