|
CT Features
|
Patients with L-PLADC (n = 131)
|
Patients with D-PLADC (n = 117)
|
p valuea
|
|---|
|
Distribution
| | | |
|
Single lobe
|
131/131 (100%)
|
36/117 (21.1%)
|
–
|
|
Right upper lobe
|
49/131 (37.4%)
|
6/117 (5.1%)
|
–
|
|
Right middle lobe
|
12/131 (9.2%)
|
0/117 (0%)
|
–
|
|
Right lower lobe
|
22/131 (16.8%)
|
14/117 (12.0%)
|
–
|
|
Left upper lobe
|
35/131 (26.7%)
|
6/117 (5.1%)
|
–
|
|
Left lower lobe
|
13/131 (9.9%)
|
10/117 (8.5%)
|
–
|
|
Right multiple lobes
|
0/131 (0%)
|
20/117 (17.1%)
| |
|
Left multiple lobes
|
0/131 (0%)
|
5/117 (4.3%)
|
–
|
|
Bilateral multiple lobes
|
0/131 (0%)
|
56/117 (47.9%)
|
–
|
|
Interlobular fissure bulging
|
8/131 (6.1%)
|
48/117 (41.0%)
|
< 0.001a
|
|
Hypodense sign b
|
22/82 (26.8%)
|
79/88 (89.8%)
|
< 0.001a
|
|
Air space
|
40/131 (30.5%)
|
68/117 (58.1%)
|
< 0.001a
|
|
Irregular air bronchogram
|
90/131 (68.7%)
|
81/117 (69.2%)
|
0.928 a
|
|
CT angiogram sign b
|
22/82 (21.8%)
|
79 /88 (89.8%)
|
< 0.001b
|
|
GGO
|
101/131 (77.1%)
|
94/117 (80.3%)
|
0.534a
|
|
Coexisting nodules
|
15/131 (11.5%)
|
73/117 (62.4%)
|
< 0.001a
|
|
Pleural retraction
|
102/131 (77.9%)
|
8/117 (6.8%)
|
< 0.001a
|
|
Pleural effusion
|
6/131 (4.6%)
|
72/117 (61.5%)
|
< 0.001a
|
|
Lymphadenopathy
|
13/131 (9.9%)
|
53/117 (45.3%)
|
< 0.001a
|
- CT, computed tomography; L-PLADC, localized pneumonic-type lung adenocarcinoma; D-PLADC, diffuse pneumonic-type lung adenocarcinoma; GGO, ground-glass opacity
- aChi-squared test
- bHypodense sign and CT angiogram sign was not assessed in 78 patients who did not undergo contrast-enhanced scanning
