Purpose: This study compared the WHO criteria with the response evaluation criteria in solid tumors (RECIST) in the same patients with metastatic colorectal cancer in order to determine the significance of the RECIST. In addition, this study compared the estimations of medical oncologists with those of a radiologist.
Materials And Methods: Between 2002 and 2005, a total of 48 patients (male: female ratio, 29:19; median age, 58 years) with measurable lesions receiving chemotherapy for metastatic colorectal carcinoma were enrolled in this study.