The NCI Dictionary of Cancer Terms features 7,780 terms related
to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related
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Cancer may be of any size and has spread to distant organs, such as the liver, lung, and peritoneal cavity (the body cavity that contains most of the organs in the abdomen), and may have also spread to organs and tissues near the pancreas or to lymph nodes.