Nano-imaging system helps surgeons remove tiny ovarian tumors

Ovarian cancer is usually diagnosed only after it has reached an advanced stage, and most patients undergo surgery to remove as many of these tumors as possible. But because some tumors are so small and widespread, it is difficult to eradicate all of them. Researchers at the Massachusetts Institute of Technology have now developed a way to improve the accuracy of this surgery and remove tumors as small as 0.3 millimeters — smaller than a poppy seed — during surgery in mice.