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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: úlcera

Ulcer (UL-ser)
A break on the skin, in the lining of an organ, or on the surface of a tissue. An ulcer forms when the surface cells become inflamed, die, and are shed. Ulcers may be linked to cancer and other diseases.



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