Table 5 Characteristics of the four patients with branch duct IPMNs with the appearance of mural nodules in the dilated branch duct during follow-up
Patient numberAge* (year)SexLocationDilated branch ductSize of mural nodules (mm)Diameter of MPD (mm)Duration of follow-up (months)TreatmentHistology
Initial size (mm)Latest size (mm)
143MHead203071267PpPDAdenoma
261MHead153265143PpPDCarcinoma in situ
363MTail206589148DPAdenoma
474MBody30306445DPAdenoma
  • *Age at initial diagnosis of branch duct IPMN.

  • DP, distal pancreatectomy; IPMN, intraductal papillary-mucinous neoplasm; M, male; PpPD, pylorus-preserving pancreaticoduodenectomy.