... microscope to check for cancer cells. Abiopsy is the only sure way to know if the abnormalarea is cancer. If you need a biopsy, you may want to ask the doctor or dentist some of the following questions:• ... istargeted therapy. The choice of treatment depends mainly on yourgeneral health, where in your mouth or throat the cancer began, the size of the tumor, and whether the cancer has spread.Many doctors ... oral cancer spreads, cancer cells may be found in the lymph nodes in the neck or in other tissues of the neck. Cancer cells canalso spread to the lungs, liver, bones, and other parts of the body.When...