A woman's breast cancer was missed on multiple mammograms. She had higher breast density, which can hide tumors.

JoAnn Pushkin

JoAnn Pushkin did everything she could to spot breast cancer early. She started getting annual mammograms at 40, the recommended age to begin screening. She also followed a healthy diet, regularly exercised, and performed additional self-exams, despite only having one aunt with breast cancer and no other risk factors.