Table 2 Radiographic findings on chest Computed Tomography and Positron-Emission-Tomography
Finding | Category | Mycobacterial lung disease (52) | Lung cancer (139) | P-value |
|---|---|---|---|---|
Multiple lobes affected | No | 40 (76.9) | 121 (87.1) | 0.12 |
Yes | 12 (23.1) | 18 (12.9) | ||
Number of lobes affecteda | Two | 6 (50.0) | 14 (77.8) | 0.001 |
Three | 0 | 4 (22.2) | ||
Four | 5 (41.7) | 0 | ||
Five | 1 (8.3) | 0 | ||
Localization of dominating lesionb | Left lower lobe | 6 (15.0) | 11 (9.1) | |
Left upper lobe | 8 (20.0) | 30 (24.8) | ||
Right lower lobe | 3 (7.5) | 25 (20.7) | ||
Right middle lobe | 5 (12.5) | 8 (6.6) | ||
Right upper lobe | 18 (45.0) | 47 (38.8) | ||
Size of Dominating lesion | Maximum length in mm (Median, IQR) | 20 (14–26) | 30 (19–49) | 0.0005 |
Lesion type | Nodule | 43 (82.7) | 67 (48.2) | <0.0001 |
Mass | 9 (17.3) | 72 (51.8) | ||
Positron-Emission-Tomography findings | ||||
Examined variable | Category | Mycobacterial Lung Disease (52) | Lung Cancer (139) | P-value |
PET available | Yes | 43 (82.7) | 137 (98.6) | |
No | 9 (17.3) | 2 (1.4) | ||
Hypermetabolic lesion | Yes | 42 (97.7) | 125 (92.6) | |
No | 1 (2.3) | 10 (7.4) | ||
Result not available | 0 | 2 | ||
SUV Max | Median (IQR) | 6.5 (4.0–8.7) | 9.5 (4.9–14.5) | 0.001 |
Lung parenchyma and thoracic structures | ||||
Total findings | ||||
Bronchiectasis | 22 (11.5) | 13 (25.0) | 9 (6.5) | 0.001 |
Intrathoracic lymphadenopathy | 64 (33.5) | 8 (15.4) | 56 (40.3) | 0.001 |
Cavitary lesion | 19 (9.9) | 7 (13.5) | 12 (8.6) | 0.41 |
Atelectasis | 31 (16.2) | 4 (7.7) | 27 (19.4) | 0.08 |
Emphysematous lung | 59 (30.9) | 9 (17.3) | 50 (36.0) | 0.01 |
Perilesional ground glass | 21 (11) | 3 (5.8) | 18 (12.9) | 0.20 |
Spiculated lesion | 44 (23) | 15 (28.8) | 29 (20.9) | 0.25 |
Tree-in-bud opacities | 9 (4.7) | 9 (17.3) | 0 | <0.0001 |
Pleural effusion | 15 (7.9) | 1 (1.9) | 14 (10.1) | 0.07 |