NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,940 terms related to cancer and medicine.
- anal Pap test
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- A procedure in which cells are scraped from the lining of the anus (the opening of the rectum to the outside of the body) and looked at under a microscope. It is used to find cancer and changes in cells that may lead to cancer. An anal Pap test can also show conditions that are not cancer, such as infection or inflammation. Also called anal Pap smear.