Using Light to Find Oral Cancer
3/31/2005 Houston, TX CancerWise (www.cancerwise.org) New Devices May Help Detect Tumors Earlier In the hope of finding an often-devastating cancer before it has a chance to develop, researchers are designing a series of probes that will literally highlight suspicious lesions in the mouth that may harbor fledgling tumors. These devices — a “scanner” that first bathes the mouth with light to pick out problem areas and a follow-up probe that shines a concentrated diagnostic beam on the lesions— are scheduled for testing at M. D. Anderson this spring and summer. If they fare well, the device designers foresee a time when community dentists or physicians turn to the probes to help screen for spots that can be difficult to pick out by observation alone. “I can’t always tell which mouth lesions might be precancerous. They can be tiny white, pink or red areas that are really hard to tell apart from normal tissue,” says Ann Gillenwater, M.D., an associate professor in M. D. Anderson’s Department of Head and Neck Surgery. “Now, our only choice is to biopsy an area that looks suspicious, and this can be more invasive than is necessary.” "More research needs to be done, but with these devices it may be possible to find oral cavity cancers when they are at their most treatable,” says Gillenwater, who has been conducting studies on the technology for several years. “When found later, as many of these cancers are, the effects of surgery and radiation treatment can impact a patient’s [...]