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Definition of Progressive Disease


Updated October 02, 2012


Progressive disease is a term that describes a disease that is progressing, or worsening. With lung cancer, progressive disease is defined as at least a 20% growth in the size of the tumor or spread of the tumor since the beginning of treatment.


National Cancer Institute. Cancer Imaging Program. Imaging Response Criteria. Accessed 03/23/09. http://imaging.cancer.gov/clinicaltrials/imaging/

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