Role of imaging in evaluating the response after neoadjuvant treatment for pancreatic ductal adenocarcinoma

Figure 2 Response assessment with contrast-enhanced computed tomography after neoadjuvant treatment. A-C: A 55-year-old man with a 2.4 cm tumor in the pancreas with non-uniform low density (A), showing no obvious enhancement relative to the surrounding pancreatic parenchyma in the arterial phase (B), without hyperenhancement or distinct ‘wash-out’ appearance in the portal venous phase (C); D-F: After 20 d of neoadjuvant treatment (FOLFOX), tumor size was reduced to 2.1 cm, with low enhancement relative to the surrounding pancreatic parenchyma on contrast-enhanced computed tomography images.