True pancreatic intraduct tubular neoplasms are uncommon.
They include intraductal papillary mucinous neoplasms, intraductal tubular adenoma, and intraductal tubular carcinoma or intraductal tubulopapillary neoplasm.
Intraductal tubular adenoma is considered a variant of gastric-type intraductal papillary mucinous neoplasm.
Intraductal tubular carcinoma is included within the rubric of intraductal tubulopapillary neoplasm.