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Table 3 Pathological characteristics of the 124 IPMNs classified according to their anatomical localization

From: Intraductal papillary mucinous neoplasms of the pancreas and European guidelines: importance of the surgery type in the decision-making process

Variables Branch duct IPMN (n = 33–26.5%) Main duct and mixed IPMN (n = 91–73.5%) p*
Histology (%)
Low grade dysplasia 21 (63) 41 (45) 0.21
High grade dysplasia 5 (15) 20 (22) 0.45
Invasive carcinoma 7 (21) 30 (33) 0.26
 Total benign 21 (63.5) 41 (45)  
 Total malignant 12 (36.5) 50 (55) 0.10
Cytological subtypes (%)
 Gastric 6 (5) 9 (7) 0.22
 Intestinal 6 (5) 28 (22.5) 0.35
 Hepatobiliary 19 (15) 37 (30) 0.10
 Oncocytic 0 5 (4) 0.52
 Other 2 (1.5) 12 (9.5) 0.34
  1. *Fisher’s exact test