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Association between immunoglobulin G4-related disease (IgG4-RD) thoracic involvement patterns.
| Nodular | Interstitial disease | Peribroncho vascular involvement | Ground-glass opacities | Lymph node enlargement | Retro mediastinal fibrosis | Pleural disease | |
| Nodular | 7 | ||||||
| Interstitial disease | 1 | 7 | |||||
| Peribronchovascular involvement | 2 | 3 | 27 | ||||
| Ground-glass opacities | 0 | 1 | 3 | 5 | |||
| Lymph node enlargement | 3 | 3 | 9 | 0 | 15 | ||
| Retromediastinal fibrosis | 0 | 0 | 0 | 0 | 0 | 2 | |
| Pleural disease | 0 | 3 | 3 | 1 | 2 | 0 | 4 |
