Definition:
A partial response means a response to a treatment such as chemotherapy that is an improvement, but not a complete response. In lung cancer, a partial response would indicate at least a 30% decrease in the size of a cancer, but not a 100% decrease.
Source:
National Cancer Institute. Cancer Imaging Program. Imaging Response Criteria. Accessed 03/23/10. http://imaging.cancer.gov/clinicaltrials/imaging/
Examples:
When she went in for her follow-up after chemotherapy, Joan's doctor told her that she had a partial response to the treatment.
