[BCT, breast conserving treatment--cosmetism and radicality].

In performing BCT with radicality and cosmetism, the attitudes of breast oncologists in Japan and western countries are different at present. In Japan, our problem is to get surgical margin negative almost sacrificing the cosmetism. On the contrary, in western countries, they evaluate RT irrespective of margin status. Contrary to our expectation, results are almost equal in the point of radicality and IBTR. If both results are almost the same, it would be better and reasonable for us to adopt the western convenience and rationalism, of cause continuing our earnest attitude utmost.