NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,790 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

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 stage 0a (papillary carcinoma) and stage 0is (carcinoma in situ), depending on the type of tumor. Stage 0a may look like tiny mushrooms growing from the lining of the bladder. Stage 0is is a flat tumor on the tissue lining the inside of the bladder.

EnlargeStage 0 bladder cancer; drawing shows the bladder, ureter, prostate, and urethra. First inset shows papillary carcinoma on the inner lining of the bladder. Second inset shows carcinoma in situ on the inner lining of the bladder. Also shown are the layers of connective tissue and muscle tissue of the bladder and the layer of fat around the bladder.

Stage 0 bladder cancer. Abnormal cells are found in the tissue lining the inside of the bladder. Stage 0a may look like tiny mushrooms growing from the lining of the bladder. Stage 0is is a flat tumor on the tissue lining the inside of the bladder.