Chicago—How should clinicians gauge whether to send patients for radiation therapy after breast-conserving surgery for ductal carcinoma in situ? Forget ordering a 12-gene assay, and start by looking at their age, according to Kimberly Van Zee, MD, a surgical oncologist at Memorial Sloan Kettering Cancer Center (MSKCC), in New York City. Her models show that women younger than 40 years of age have their cancers recur at a rate seven times higher than women older than 80
FEBRUARY 28, 2017