NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,305 terms related to cancer and medicine.

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papillary tumor
(PA-pih-LAYR-ee TOO-mer)
A tumor that looks like long, thin “finger-like” growths. These tumors grow from tissue that lines the inside of an organ. Papillary tumors may be benign (not cancer) or malignant (cancer). Papillary tumors occur most often in the bladder, thyroid, and breast, but they may occur in other parts of the body as well.