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Abnormal

Glossary

abnormal

Not normal. Describes a state, condition, or behavior that is unusual or different from what is considered normal. An abnormal lesion or growth in or on the body may be benign (not cancer), precancerous or premalignant (likely to become cancer), or malignant (cancer).

Last updated: 2014-06-25

Source: The National Cancer Institute's Dictionary of Cancer Terms (http://www.cancer.gov/dictionary)