Fig. 4
A 62-year-old man had PDAC. a T2WI shows an oval-shaped mass located in the pancreatic tail that is visible as hyperintense with heterogeneity. b On DWI (b = 800 s/mm2) and ADC map (c), the pancreatic mass is clearly defined as hyperintense and hypointense, respectively. The pancreatic mass in the tail appears hypointense on both unenhanced (d) and (e) PP images. During the VP (f) and DP (g) imaging, the mass appears mild or obviously hyperintense, but the central area maintains hypointensity all the time