Table 2 Clinical characteristics and anatomical measurements of 30 patients with sellar tumors

Age

47.67±13.93

17-73

Male (%)

14(46.67%)

Hardy class (%)

1

1(3.33%)

2

8(26.67%)

3

10(33.33%)

4

5(16.67%)

5

6(20%)

Length of stay

18.57±6.43

10-38

Distance from the midpoint of the columella to the bone-cartilage junction of the nasal septum (mm)

29.9±1.66

26.95-34.09

Distance from the external naris plane to the most shallow point on the anterior wall of the right sphenoid sinus (mm)

62.49±4.96

51.37-71.56

Distance from the external naris plane to the most shallow point on the anterior wall of the left sphenoid sinus (mm)

62.98±5.02

52.97-71.99

Distance from the sphenoid sinus opening to the midpoint of the columella (mm)

66.14±5.2

55.22-75.97

Distance from the sphenoid sinus opening to the choanal upper edge (mm)

26.66±2.1

23.17-29.92

Distance from the sphenoid sinus opening to the hanging wall (mm)

16.83±3.5

11.29-25.6

Distance from the sphenoid sinus opening to the inferior wall (mm)

10.47±3.23

6.16-19.87

Distance from the sphenoid sinus opening to the right lateral wall (mm)

18.26±3.94

12.74-25.41

Distance from the sphenoid sinus opening to the left lateral wall (mm)

18.13±3.94

12.53-25.97

Angle between the connecting line from the columella to the glabella and the approach (°)

54.54±2.48

49.81-60.02

Distance from the columella - glabella extension line to the sellar floor (mm)

15.97±7.23

1.39-29.3