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Table 1 Patient characteristics

From: Prediction of the aggressiveness of non-functional pancreatic neuroendocrine tumors based on the dual-tracer PET/CT

No. patients

31

Gender, Male, n (%)

20 (65)

Age years, mean (SD)

59.6 (17.6)

BMI, mean (SD)

26.3 (4.0)

Asymptomatic, n (%)

29 (90)

MEN1 syndrome, n (%)

7 (23)

CgA, n (%)

 

 Strongly positive

3 (10)

 Weakly positive

15 (48)

 Negative

13 (42)

PP (pmol/L), median (IQR)

68 (41–129)

5-HIAA (nmol/L), median (IQR)

64 (53–64)

Primary tumor size (mm)

 

 All patients, median (IQR)

24 (14–35)

 Operated, median (IQR) (n = 20)

31 (20–52)

 Biopsy and follow-up, median (min–max) (n = 2)

24 (22–25)

 Follow-up*, median (IQR) (n = 9)

14 (13–21)

Tumor localization, n (%)

 

 Head

12 (39)

 Body

2 (6)

 Tail

10 (32)

 Multiple

7 (23)

Treatment, n (%)

 

 Surgery

20 (65)

 Biopsy and follow-up

2 (6)

 Follow-up*

9 (29)

Type of surgery, n (%)

 

 Total pancreatectomy

2 (10)

 Pancreaticoduodenectomy

4 (20)

 Distal pancreatectomy

13 (65)

 Enucleation

1 (5)

Type of surgery, n (%)

 

 Open

13 (75)

 Laparoscopic

5 (25)

 Robotic surgery

2 (10)

Grade, n (%)

 

 G1

13 (59)

 G2

8 (36)

 G3 NET

1 (5)

 G3 NEC

0

  1. Abbreviations: CgA, circulating chromogranin A, strongly positive indicates S-CgA = 13.5 nmol/L or P-CgA 9–37 nmol/L, weakly positive indicates S-CgA 2.2–4.7 nmol/L or P-CgA 3.0–4.8 nmol/L and negative indicates S-CgA < 2.1 nmol/L or P-CgA < 3.0 nmol/L; BMI, body mass index, kg/m2; MEN1, multiple endocrine neoplasia type 1 syndrome; PP, pancreatic polypeptide; 5-HIAA, 5-hydroxyindoleatic acid
  2. *Two patients underwent non-diagnostic EUS-FNB (endoscopic ultrasonography and fine needle biopsy)