Table 2. Per-Lesion Analysis of Chest Computed Tomography Findings.
| Patchy to Confluent Lesions (n = 40) | n (%) | Nodular Lesions (n = 37) | n (%) |
|---|---|---|---|
| Density | Density | ||
| Pure GGO | 14 (35) | Pure ground-glass | 21 (57) |
| Mixed GGO and consolidation | 20 (50) | Part-solid | 16 (43) |
| Consolidation | 2 (5) | Solid | 0 (0) |
| Crazy-paving appearance | 4 (10) | - | |
| Axial location | Axial location | ||
| Central | 1 (2) | Central | 7 (19) |
| Peripheral | 30 (75) | Peripheral | 30 (81) |
| Central and peripheral | 9 (23) | - | |
| Anteroposterior location | Anteroposterior location | ||
| Anterior | 9 (23) | Anterior | 13 (35) |
| Posterior | 28 (70) | Posterior | 24 (65) |
| Anterior and posterior | 3 (7) | - | |
| Shape | Shape | ||
| Wedged | 17 (42) | Round | 35 (95) |
| Elongated | 13 (33) | Elongated | 2 (5) |
| Confluent | 10 (25) | - | |
| Margin | Margin | ||
| Ill-defined | 28 (70) | Ill-defined | 28 (76) |
| Well-defined | 12 (30) | Well-defined | 9 (24) |
| Predilection for particular locations | Predilection for particular locations | ||
| Lower lobe involvement | 24 (60) | Lower lobe involvement | 13 (35) |
| Pleural attachment | 32 (80) | Pleural attachment | 13 (35) |
| Bronchovascular bundle | 11 (27) | Bronchovascular bundle | 22 (59) |
| Internal characteristic findings | Internal characteristic findings | ||
| Air-bronchogram | 11 (28) | Air-bronchogram | 5 (14) |
| - | Reversed halo sign | 1 (3) | |
| - | Cavity | 0 (0) |
GGO = ground-glass opacity