Table 3. Radiographic Characteristics Based on CT Findings in Patients with and without Bronchial AF.
| Radiologic factor | Patients without AF (n=242) | Patient with AF (n=167) | p value |
|---|---|---|---|
| Bronchial tree | |||
| Stenosis | 4 (1.7) | 82 (49.1) | <0.005 |
| Atelectasis | 33 (9.2) | 49 (29.3) | <0.005 |
| Bronchial wall thickening | 9 (3.7) | 42 (25.1) | <0.005 |
| Peribronchial calcification | 1 (0.4) | 17 (10.2) | <0.005 |
| Pleural calcification | 2 (0.8) | 2 (1.2) | 0.711 |
| LN | |||
| Number of patients with LN enlargement (n=100) | 38 (15.7) | 62 (37.1) | <0.005 |
| Upper and aortopulmonary zone | 9 (3.7) | 6 (3.6) | 0.947 |
| Subcarinal or lower zone | 37 (15.3) | 54 (32.3) | <0.005 |
| Hilar-interlobal zone | 5 (2.1) | 22 (13.2) | <0.005 |
| Number of patients with calcified LN (n=70) | 9 (3.7) | 61 (36.5) | <0.005 |
| 0 | 233 (96.3) | 107 (64.1) | <0.005 |
| 1 | 9 (3.7) | 25 (15.0) | <0.005 |
| ≥2 | 0 (0.0) | 36 (21.6) | <0.005 |
| Size of calcified LN* | |||
| ≤0.5 cm | 0 (0.0) | 3 (1.8) | 0.036 |
| 0.5 cm< size ≤1.0 cm | 4 (12.5) | 20 (12.0) | <0.005 |
| >1.0 cm | 5 (15.6) | 38 (22.8) | <0.005 |
| Pattern of calcification* (n=70) | |||
| Focal | 7 (21.9) | 48 (28.7) | <0.005 |
| Capsular | 0 (0.0) | 4 (2.4) | 0.016 |
| Complete | 2 (6.3) | 9 (5.4) | 0.005 |
AF, anthracofibrosis; LN, lymph node.
*In case of more than two LN exist, only large one was presented.