Mixed components in IPMN. Both of these lesions show features of the so-called tubulopapillary subtype. (a) The left half to the pictured field contain pyloric gland adenomatous component, while the right side show foveolar configuration. Also note the scattered goblet cells mostly in the foveolar component. (b) The tubular component exhibits high grade dysplasia. An invasive ductal adenocarcinoma arose from this lesion (not shown).