Table 3. Histopathological diagnosis of patients undergoing TBCB.
| Pathological diagnosis | Case (%) |
|---|---|
| Definitive pathological diagnosis | |
| UIP | 77 (20.6) |
| NSIP | 48 (12.9) |
| OP | 13 (3.5) |
| PAP | 14 (3.8) |
| LAM | 10 (2.7) |
| Lung cancer | 18 (4.8) |
| Pneumonia | 9 (2.4) |
| Bullous emphysema | 7 (1.9) |
| Sarcoidosis | 6 (1.6) |
| Pneumoconiosis | 5 (1.3) |
| TB | 4 (1.1) |
| DIP | 3 (0.8) |
| HP | 3 (0.8) |
| RB-ILD | 2 (0.5) |
| ACFE | 2 (0.5) |
| PCP | 1 (0.3) |
| PIE | 1 (0.3) |
| LCH | 1 (0.3) |
| PAM | 1 (0.3) |
| Lipid pneumonia | 1 (0.3) |
| PO | 1 (0.3) |
| Cryptococcosis | 1 (0.3) |
| Giant cell interstitial pneumonia | 1 (0.3) |
| IPH | 1 (0.3) |
| Aspiration pneumonia | 1 (0.3) |
| Congenital cystic adenomatoid malformations | 1 (0.3) |
| Pulmonary intravascular large B-cell lymphoma | 1 (0.3) |
| Possible pathological diagnosis | |
| UIP | 5 (1.3) |
| HP | 2 (0.5) |
| NSIP | 4 (1.2) |
| DIP | 1 (0.3) |
| OP | 1 (0.3) |
| PAP | 2 (0.5) |
| RB-ILD | 1 (0.3) |
| TB | 2 (0.5) |
| PCP | 1 (0.3) |
| Sarcoidosis | 2 (0.5) |
| Unknown diagnosis | 119 (31.6) |
UIP, usual interstitial pneumonia; NSIP, non-specific interstitial pneumonia; DIP, desquamative interstitial pneumonia; HP, hypersensitivity pneumonitis; PLAM, pulmonary lymphangiomyomatosis; OP, organizing pneumonia; PAP, pulmonary alveolar proteinosis; PCP, pneumocystis pneumonia; PIE, pulmonary infiltration with eosinophilia; RB-ILD, respiratory bronchiolitis-interstitial lung disease; LCH, langerhans cell histiocytosis; TB, tuberculosis; ACFE, airway-centered fibroelastosis; PAM, pulmonary alveolar microlithiasis; PO, pulmonary ossification; IPH, idiopathic pulmonary hemosiderosis.