NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,158 terms related to cancer and medicine.

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Merkel cell cancer
(MER-kul sel KAN-ser)
A rare type of cancer that forms on or just beneath the skin, usually in parts of the body that have been exposed to the sun. It is most common in older people and in people with weakened immune systems. Also called Merkel cell carcinoma, neuroendocrine carcinoma of the skin, and trabecular cancer.