Screening for oral cancer in a new light
3/4/2008 Chicago, IL staff Chicago Sun-Times (www.suntimes.com) Fluorescent scan helped detect man's lesions that could have developed into cancer It might be nothing serious, but a sore in your mouth that shows no sign of healing could also be a warning sign of oral cancer, which kills more than 8,000 people a year. Often, it's not diagnosed until it's advanced because symptoms -- sore throat, white or red patches on the gums or tongue, numbness -- are easy to put off to something less serious. Last year, Grant Achatz, the acclaimed chef at Alinea, shocked the food world by announcing he had late-stage oral cancer -- which, after treatment, is in remission. About 34,000 people a year are diagnosed with oral cancer nationally. Caught early, it has a 75 percent to 80 percent five-year survival rate. But late diagnosis lowers the survival rate to just 50 percent, says Richard Price, an American Dental Association spokesman. Also, screening for oral cancer typically has largely relied on a dentist spotting or feeling something amiss. But recent advances make it easier for dentists to spot problems early. Among them: the VELscope, an instrument that was showcased at the Chicago Dental Society's recent midwinter meeting. The device emits a blue light that causes the mouth to glow. Healthy tissue glows green under that light; cancerous tissue looks brown or black. The test takes two to three minutes. Some Chicago-area dentists use another device, called Vizilite -- a glowstick that highlights abnormalities in the mouth [...]