Table 3 Preoperative imaging and characteristics of detected and resected parathyroid glands

Preoperative imaging

Ectopic parathyroid gland, n (%)

7 (4%)

8 (13%)

0.041

Patients with different resected parathyroid glands

Number = 2

0

8

 < 0.001

Number = 3

11

13

Number = 4

154

41

Characteristics of resected parathyroid glands

Average number of resected parathyroid glands

3.93 ± 0.25

3.53 ± 0.72

 < 0.001

Number of resected parathyroid glands

4 (4, 4)

4 (3, 4)

-

 Number = 2

n = 0

n = 8

  Minimum weight (g)

-

0.65 (0.16, 1.48)

-

  Maximum weight (g)

-

1.00 (0.80, 2.05)

-

  Total weight (g)

-

1.60 (1.33, 3.25)

-

 Number = 3

n = 11

n = 13

  Minimum weight (g)

0.35 ± 0.14

0.42 ± 0.26

0.407

  Maximum weight (g)

1.85 ± 0.97

1.48 ± 0.67

0.282

  Total weight (g)

2.99 ± 1.36

2.65 ± 1.16

0.522

 Number = 4

n = 154

n = 41

  Minimum weight (g)

0.38 ± 0.19

0.52 ± 0.31

0.009

  Maximum weight (g)

1.80 ± 0.86

1.84 ± 1.10

0.836

Total weight (g)

3.93 ± 1.62

4.24 ± 2.26

0.421