The relationship between microscopic tumor size and CT tumor size in pancreatic ductal adenocarcinoma

Objectives To investigate the exact relationship between CT tumor size and the microscopic tumor size in PDAC. Materials and methods We enrolled 310 patients with pathologically confirmed PDAC without preoperative adjuvant therapies who underwent CT examination from June 2016 and December 2018. Smooth curve fitting and a segmented regression model were used to analyze the threshold effect between CT tumor size and the microscopic tumor size....