Gross appearance Histological subtypes Degree of dysplasia FAS- positivity (%) Ki-67- positivity (%)
Case 1 MD Gastric IPMN-low 5.3 7.2
Case 2 BD Gastric IPMN-low 7.6 0.9
Case 3 MD Pancreatobiliary IPMN-high 59 12.6
Case 4 MD Intestinal IPMN-intermediate 18.7 23.4
Case 5 MD Gastric IPMN-low 10 2.4
Case 6 Mixed Gastric IPMN-low 5 0.8
Case 7 Mixed Pancreatobiliary IPMN-high 60 40.9
Case 8 MD Gastric IPMN-low 6.4 0.8
MD: Main Duct type, BD: Branch Duct type
Table 2: Histopathological features of the 6 IPMN cases.