NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,847 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.

proximal urethral cancer
(PROK-sih-mul yoo-REE-thrul KAN-ser)
A rare cancer that forms in the part of the urethra closest to the inside of the body. The cancer often has spread deeply into the tissue.