A comparative study of volumetric analysis, histopathologic downstaging, and tumor regression grade in evaluating tumor response in locally advanced rectal cancer following preoperative chemoradiation.
International Journal of Radiation Oncology Biology Physics（2007）
Abstract
Tumor volume reduction rate does not correlate with histopathologic downstaging and TRG. It might be hazardous to evaluate tumor response with respect to volume reduction and to select the surgical method on this basis.
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Key words
preoperative chemoradiotherapy,tumor volume,histopathologic downstaging,tumor regression grade
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