"it's not hard to see why a diagnosis of DCIS is confusing and frustrating. On one hand, you're told not to worry; you do not have invasive cancer and most likely never will (the 10-year survival rate is almost 100 percent, with treatment). On the other, you're told you need to have the cells surgically removed and, in some cases, may need radiation. So really, it's not so far off from what you'd go through if you did have cancer. And even though DCIS is almost always treated, scientists agree that not all cases would ever have turned dangerous. How did we get into this situation? And how do we get out of it?"