|
Lesion size
|
|
Median (IQR) mm
|
23.08 (17.1–32.8)
|
23.13 (17.1–32.8)
|
20.38 (17.4–33.2)
|
|
< 20 mm (long diameter)
|
338 (36.9%)
|
325 (36.7%)
|
13 (43.3%)
|
|
Findings of thin-section CT
|
|
GGN*
|
53 (5.8%)
|
47 (5.3%)
|
6 (20.0%)
|
|
Solid
|
863 (94.2%)
|
839 (94.5%)
|
24 (80.0%)
|
|
Location
|
|
Right upper lobe or left upper segments
|
448 (48.9%)
|
440 (49.7%)
|
8 (26.7%)
|
|
Middle lobe or lingula
|
127 (13.9%)
|
119 (13.4%)
|
8 (26.7%)
|
|
Lower lobe
|
341 (37.2%)
|
327 (36.9%)
|
14 (46.7%)
|
|
Segments located in the sagittal direction**
|
214 (23.4%)
|
201 (22.7%)
|
13 (43.3%)
|
|
CT bronchus sign***
|
|
A
|
518 (56.7%)
|
503 (56.7%)
|
15 (50.0%)
|
|
B
|
336 (36.7%)
|
323 (36.5%)
|
13 (43.3%)
|
|
C
|
62 (6.8%)
|
60 (6.8%)
|
2 (6.7%)
|
|
Pleural involvement
|
|
Contact or indentation
|
344 (37.5%)
|
333 (37.6%)
|
11 (36.7%)
|
|
No contact
|
572 (62.5%)
|
553 (62.4%)
|
19 (63.3%)
|
|
Fluoroscopic view
|
|
Visible
|
643 (70.2%)
|
627 (70.8%)
|
16 (53.3%)
|
|
Not visible
|
273 (29.8%)
|
259 (29.2%)
|
14 (46.7%)
|
|
EBUS findings
|
|
Within
|
558 (60.9%)
|
543 (61.2%)
|
15 (53.3%)
|
|
Adjacent to
|
236 (25.8%)
|
227 (25.6%)
|
9 (30.0%)
|
|
Blizzard sign and mixed-blizzard sign
|
97 (10.5%)
|
92 (10.3%)
|
5 (16.7%)
|
|
Outside
|
25 (2.7%)
|
24 (2.7%)
|
1 (3.3%)
|
|
Bronchoscopic diagnosis
|
|
Malignancy
|
647 (70.6%)
|
633 (71.4%)
|
14 (46.7%)
|
|
Infection
|
55 (6.0%)
|
50 (5.6%)
|
5 (16.7%)
|
|
Organizing pneumonia
|
45 (4.9%)
|
45 (5.1%)
|
0 (0.0%)
|
|
Other inflammatory lesions
|
61 (6.7%)
|
60 (6.7%)
|
1 (3.3%)
|
|
Undiagnosed
|
108 (11.8%)
|
98 (12.1%)
|
10 (33.3%)
|
|
Final diagnosis
|
|
Lung cancer or other malignancy
|
651 (71.1%)
|
634 (71.6%)
|
17 (56.7%)
|
|
Infectious disease
|
56 (6.1%)
|
51 (5.7%)
|
5 (16.7%)
|
|
Inflammatory disease
|
121 (13.2%)
|
116 (13.1%)
|
5 (16.7%)
|
|
Other benign disease
|
88 (9.6%)
|
85 (9.6%)
|
3 (10.0%)
|
