Fig. 4From: Conversion surgery for initially unresectable locally advanced pancreatic ductal adenocarcinoma after chemotherapy followed by carbon-ion radiotherapy: a case reportThe progress of preoperative treatment and changes in tumor markers. Tumor marker concentrations were within the normal limits during the preoperative period. CEA carcinoembryonic antigen, CA19-9 carbohydrate antigen 19-9, GnP gemcitabine plus nanoparticle albumin-bound paclitaxel, GEM gemcitabine, CIRT carbon-ion radiotherapyBack to article page