Figure 10b. Bulging patulous papilla from IPMT in a 52-year-old man. (a–c) Contrast-enhanced axial (a) and coronal reformatted (b, c) CT images show cystic dilated branch ducts (arrowhead in c), a dilated MPD (arrow in b), and bulging of the papilla with faint enhancement (arrow in a). (d) Endoscopic image reveals jellylike mucin leaking from the papilla.