It takes six months for the results to appear, scientists say...
Fat from the tummy or bottom could be used to grow new breasts in a treatment which could be carried out in an hour - or a lunch break.
Scientists say they can create a fat mixture with concentrated stem cells, which, when injected into the breast, apparently encourages tissue to grow.
The therapy, detailed in Chemistry and Industry Magazine, could help cancer patients who have had mastectomies. And if licensed, it may rival silicone for those seeking bigger breasts.
Using fat from the patient's own body to rebuild other areas is not a novel idea, but such reconstructions often fail as the fat is simply reabsorbed. However using fat-derived stem cells appears to overcome this problem, according to the company behind the procedure, Cytori Therapeutics.
Scientists say they are not sure quite how it works, but suspect that the stem cells emit signals that encourage blood vessels to grow and nurture new tissue.
Rajiv Grover of the British Association of Aesthetic Plastic Surgeons (Baaps) said he saw the research as a "positive development for medical science", but doubted whether it would provide any immediate results in cosmetic surgery.
"We need to find out how these cells work once they are in the breast before any great claims can be made VAI
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