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Spit Test Spots Head and Neck Cancer

Researchers Also Working on Oral Swab Test for Lung Cancer
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WebMD Health News
Reviewed by Louise Chang, MD

April 14, 2008 (San Diego) -- Researchers have developed a DNA spit test to detect the earliest signs of head and neck cancer, when it is more curable, and they say it could be available by the end of the year.

Also in the works -- though not as far along -- is an oral swab test to gauge whether someone is at increased risk of developing lung cancer.

If it pans out in future research, the swab test could also be used to predict who has a high probability of developing head and neck cancer and other tobacco-related cancers, the researchers say.

More than 40,000 Americans are diagnosed with head and neck cancer annually and about 12,000 die of it. A total of 215,020 Americans will be diagnosed with lung cancer in 2008, and it will kill 161,840, according to the American Cancer Society (ACS).

Both new tests were discussed at the annual meeting of the American Association for Cancer Research.

"Living Like Hell'

Seema Sethi, MD, tells WebMD that she "jumped into research to find a test to pick up head and neck cancer earlier" after losing her dad to a tobacco-related cancer. Sethi is a specialist in otolaryngology-head and neck surgery at Henry Ford Hospital in Detroit.

"Everyone knows smoking and alcohol are associated with head and neck cancer, but no one knows who's going to get it," she says.

Currently, most cases are diagnosed in advanced stages, when prognosis is poor, Sethi says. "Despite the best of treatments, outcomes are not as good as if it was picked up earlier," she says.

Head and neck cancer is one of the most horrendous of diagnoses. "You have to chop off part of the patient's face. They often can't swallow or eat solid food. There's a lot of mouth odor. So even if you're living, you're living like hell," Sethi says.

Gene Test Predicts Head and Neck Cancer

Because the development of the disease in people at high risk, such as smokers, takes many years, Sethi reasoned that this "window" period offered an opportunity for early screening.

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