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"Mayo Clinic research into whether ultrasounds to detect breast cancer in underarm lymph nodes are less effective in obese women has produced a surprising finding. Fat didn't obscure the images\u2014and ultrasounds showing no suspicious lymph nodes actually proved more accurate in overweight and obese patients than in women with a normal body mass index, the study found. The research is among several Mayo studies presented at the American Society of Breast Surgeons annual meeting April 30-May 4 in Las Vegas."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2014-04-lymph-node-ultrasounds-accurate-obese.html>