NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,856 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.

Clark level III skin cancer
(klark LEH-vul … skin KAN-ser)
Skin cancer that has spread down through the papillary dermis (the thin top layer of the dermis) but not into the reticular dermis (the thick bottom layer of the dermis).