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Table 1 Characteristics of MEN1 patients with insulinoma

From: Analysis of 55 patients with multiple endocrine neoplasia type 1-associated insulinoma from a single center in China

 

Overall (n = 55)

Gender, male, n (%)

29 (52.7%)

Height, cm, mean ± SD

165.04 ± 9.71

Weight, kg, mean ± SD

68.63 ± 13.49

BMI, kg/m2 mean ± SD

25.16 ± 4.15

Age, years, mean ± SD at

 

 Initial hypoglycemia

30.76 ± 14.03

 Insulinoma diagnosis

34.49 ± 14.99

 MEN1 diagnosis

36.20 ± 14.08

Delay of diagnosis of, years, median (IQR)

 

 Insulinoma

2 (1–5)

 MEN1

4 (1–10)

Follow-up period, years, mean ± SD

5.75 ± 5.31

During hypoglycemic episodes, mean ± SD

 

 Glucose, mmol/L

2.25 ± 0.56

 Insulin, μIU/mL

23.77 (10.52–47.82)

 C-peptide, ng/mL

3.38 ± 1.79

 INS/GLU

8.54(4.21–20.45)

 C-peptide/GLU

1.53 ± 1.00

Ca, mmol/L, mean ± SD

2.61 ± 0.24

iCa, mmol/L, median (IQR)

1.33 (1.22–1.37)

Albumin, g/L, mean ± SD

42.19 ± 4.46

PTH, pg/mL, median (IQR)

110 (55.23–187.20)

P, mmol/L, median (IQR)

0.99 (0.86–1.29)

Matsuda-ISI, mean ± SD

73.72 ± 42.35

Number of pNETs, n (%)

 

 Multiple

38 (69.1%)

 Single

17(30.9%)

Location of pNETs, n (%)

 

 Head/neck

21 (38.2%)

 Body/tail

19 (34.5%)

 Head/neck and Body/tail

15 (27.3%)

Maximum diameter of pNETs, cm, mean ± SD

2.41 ± 1.44

Lymph nodes removal at initial surgery, n (%)

8 (16%)

Lymph node metastases at initial surgery, n (%)

1 (2%)

Liver metastases

1 (2%)

Tumor grade, n (%)

 

 Grade 1

24 (63.2%)

 Grade 2

14 (36.8%)

Histopathological Ki67% of surgery samples biopsy, %, mean ± SD

2.87 ± 1.94

Mitotic figures, %, median (IQR)

2 (1–3.25)

  1. MEN-1, multiple endocrine neoplasia type 1; BMI, body mass index; INS, insulin; GLU, glucose; C-P, C-peptide; Ca, calcium; iCa, Ionized-Ca; PTH, parathyroid hormone; P, phosphorus; Matsuda-ISI, Matsuda-Insulin Sensitivity Index