Table 3 Clinical outcome of branch duct IPMNs without mural nodules
Clinical outcomeBranch duct IPMNs without mural nodules (%)
Size of dilated branch duct*
    No change69 (84.1)
    Reduced0 (0)
    Enlarged9 (11.0)†
Appearance of mural nodules4 (4.9)‡
Total82 (100)
  • *Branch ducts showing changes >10 mm were defined as enlarged or reduced.

  • †Three cases underwent surgery; the remaining six cases continued with regular follow-up examinations only.

  • ‡All cases underwent surgery.

  • IPMN, intraductal papillary-mucinous neoplasm