NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,777 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.

peripheral primitive neuroectodermal tumor
(peh-RIH-feh-rul PRIH-muh-tiv NOOR-oh-EK-toh-DER-mul TOO-mer)
A type of cancer that forms in bone or soft tissue. Also called Ewing sarcoma and pPNET.