High-resolution CT findings in eight patients with rheumatoid arthritis
| Value | |
| Solitary nodule or mass | 3 (37.5%) |
| Multiple nodules in single lobe limited | 1 (12.5%) |
| Multiple nodules in multiple lobes | 0 |
| Consolidations | 4 (50.0%) |
| Nodules and masses | 7 (87.5%) |
| Multiple nodules/masses in the same lung lobe | 4 (50.0%) |
| Number of involved lobes | |
| 1 | 5 (62.5%) |
| 2 | 0 |
| 3 | 0 |
| 4 | 2 (25.0%) |
| 5 | 1 (12.5%) |
| Size (mm) | |
| 1–30 | 7 (87.5%) |
| ≥31 | 0 |
| Number | |
| 1 | 3 (37.5%) |
| 2–4 | 2 (25.0%) |
| 5–9 | 0 |
| ≥10 | 2 (25.0%) |
| Border | |
| Well-defined | 7 (87.5%) |
| Ill-defined | 0 |
| Convergence of bronchi and vessel | 0 |
| Pleural indentation | 0 |
| Consolidation | 4 (50.0%) |
| Number of involved lobes | |
| 1 | 1 (12.5%) |
| 2 | 0 |
| 3 | 2 (25.0%) |
| 4 | 0 |
| 5 | 1 (12.5%) |
| Internal characteristics | |
| Air bronchogram | 5 (62.5%) |
| Cavitation | 4 (50.0 %) |
| Calcification | 0 |
| Halo sign | 2 (25.0%) |
| Satellite lesion | 5 (62.5%) |
| Pleural effusion | 0 |
| Lymphadenopathy | 1 (12.5%) |