Colorcoded surgery Quyen Nguyen on

Surgeons are taught from textbooks which conveniently color-code the types of tissues, but that’s not what it looks like in real life — until now. At TEDMED Quyen Nguyen demonstrates how a molecular marker can make tumors light up in neon green, showing surgeons exactly where to cut. (Recorded at TEDMED, October 2011, in San Diego, California. Duration: 16:09)

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