Table 1 Clinical data in malignant and nonmalignant IPMNs

Age

63.28 ± 9.47

63.59 ± 8.99

62.60 ± 10.50

0.55

Size

3.69 ± 1.98

3.93 ± 1.63

3.58 ± 2.11

0.34

Sex (male/female)

84/47

29/11

55/36

0.28

  Low-intermediate grade

104

/

104

  High-grade

24

24

0

  Invasion

23

13

0

Type

<  0.01

  Main

24

16

8

  Branch

73

9

64

  Mixed

54

22

32

Location

0.15

  Head-neck

95

34

61

  Body and Tail

56

13

43

CEA (ng/ml)

3.57 ± 3.61

4.75 ± 5.65

3.03 ± 1.95

0.09

  CEA > 5.0

24

10

14

0.22

CA19–9 (U/ml)

48.68 ± 228.65

99.04 ± 396.08

26.19 ± 70.67

0.002

  > 37

29

17

12

<  0.001

Ferritin (ng/ml)

275.03 ± 284.65

370.58 ± 358.19

231.84 ± 233.76

0.001

  > 232

60

26

34

0.009

MPD diameter

0.61 ± 0.41

0.90 ± 0.49

0.48 ± 0.29

<  0.001

Chronic cholecystitis

56

17

39

0.87

Pancreatitis

3

0

3

0.24

Abdominal Symptoms

67

23

44

0.92

Diabetes

23

9

14

0.13

Lymph node metastasis (yes vs no)

2

2

0

0.09

Peripancreatic extension

5

5

0

0.003

Mural nodule

17

13

4

<  0.01