NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,386 terms related to cancer and medicine.
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A condition in which abnormal cells are found in the glandular tissue that lines certain internal organs, such as the uterus, cervix, lung, pancreas, and colon. AIS, which occurs most often in the cervix, may become cancer and spread to nearby normal tissue. Also called adenocarcinoma in situ.