Even the best dermatologists can't diagnose skin cancer by eye, relying on magnifying glasses to examine suspicious blemishes and scalpels to cut tissue for analysis. With up to more than 70 percent of biopsies coming back negative, millions of healthy patients undergo painful, costly and unnecessary procedures. Now, using shortwave rays used in cellphones and airport security scanners, researchers at Stevens Institute of Technology have developed a technique that detects skin lesions and determines whether they are cancerous or benign—a technology that could ultimately be incorporated into a handheld device that could rapidly diagnose skin cancer without a scalpel in sight.
* This article was originally published here