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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Indiferenciado

Undifferentiated (un-DIF-fur-EN-shee-AY-ted)
A term used to describe cells or tissues that do not have specialized ("mature") structures or functions. Undifferentiated cancer cells often grow and spread quickly.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.