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Table 1 Patient characteristics and CT imaging findings

From: The differentiation of pancreatic neuroendocrine carcinoma from pancreatic ductal adenocarcinoma: the values of CT imaging features and texture analysis

Characteristics

PDAC(n = 28)

PNEC(n = 14)

P values

Age(years)

62.6 ± 9.7 (42–75)

56.4 ± 11.6 (25–71)

< 0.05

Gender

  

0.31

 Male

17 (60.7%)

11 (78.6%)

 

 Female

11 (39.3%)

3 (21.4%)

 

Size(cm)

3.56 ± 1.45

5.10 ± 4.42

0.09

Location

  

0.18

 Head or neck

19 (67.9%)

6 (42.9%)

 

 Body or tail

9 (22.1%)

8 (57.1%)

 

Margin

  

0.04

 Well-defined

7 (25.0%)

8 (57.1%)

 

 Indistinct

21 (75.0%)

6 (42.9%)

 

CT attenuation value(HU)

 Un-enhanced phase

33.8 ± 4.76

37.8 ± 5.86

0.23

Arterial phase

44.2 ± 8.56

64.6 ± 10.37

< 0.01

Portal phase

52.3 ± 7.49

64.9 ± 11.06

0.01

Parenchymal atrophy

19 (67.9%)

4 (28.6%)

0.02

Pancreatic duct dilatation

16 (71.4%)

7 (50.0%)

0.19

Positive lymph nodes or local invasion

14 (50.0%)

3 (21.4%)

0.10

  1. PDAC pancreatic ductal adenocarcinomas; PNEC pancreatic neuroendocrine carcinoma
  2. CT computed tomography