Current considerations on intraductal papillary neoplasms of the bile duct and pancreatic duct

Table 1 High-risk stigmata and worrisome features of malignant pancreatic intraductal papillary mucinous neoplasms

High-risk stigmata	Worrisome features
Dilated main pancreatic duct ≥ 10 mm	Cyst size 3 ≥ cm
Enhanced solid mural nodule 5 ≥ mm	Thickened and enhanced cyst wall
Obstructive jaundice	Abrupt dilatation of the main pancreatic duct 5-9 mm
	Distal atrophy of the pancreas
	Lymph node involvement