NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,370 terms related to cancer and medicine.

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stage 0 bladder carcinoma in situ
(... BLA-der KAR-sih-NOH-muh in SY-too)
Abnormal cells are found in tissue lining the inside of the bladder. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is divided into stages 0a and 0is, depending on the type of tumor. Stage 0a is also called noninvasive papillary carcinoma, which may look like long, thin growths growing from the lining of the bladder. Stage 0is is also called carcinoma in situ, which is a flat tumor on the tissue lining the inside of the bladder.