Table 1.
Serum CEA contents according types of benign lung diseases.
| Diagnose | N | N of CEA > 5 mg/mL | N of CEA > 10 mg/mL | Maximum value |
|---|---|---|---|---|
| COPD | 1270 | 61 (4.80%) | 12 (0.94%) | 17.33 |
| Pneumonitis/COP | 484 | 23 (4.75%) | 3 (0.62%) | 40.12 |
| IP | 1018 | 14 (1.38%) | 1 (0.09%) | 11.22 |
| Tuberculosis | 1311 | 7 (0.53%) | 1 (0.07%) | 10.18 |
| Pulmonary abscess | 290 | 4 (1.38%) | 1 (0.35%) | 11.73 |
| Bronchiectasis | 110 | 5 (4.54%) | 0 | 8.7 |
| Pneumothorax | 62 | 3 (4.83%) | 0 | 6.61 |
| Asthma | 46 | 5 (10.87%) | 2 (4.35%) | 10.04 |
| ILD/CTD-ILD | 115 | 19 (16.52%) | 4 (3.48%) | 24.25 |
| Pulmonary embolism | 63 | 2 (3.17%) | 1 (1.59%) | 11.78 |
| PAP | 27 | 6 (22.22%) | 3 (11.11%) | 28.02 |
| Total | 4796 | 149 (3.11%) | 28 (0.58%) | – |
COPD Chronic obstructive pulmonary disease, ILD Interstitial lung disease, CTD-ILD Connective tissue disease-associated interstitial lung disease, PAP Pulmonary alveolar proteinosis, IP Inflammatory pseudotumor, COP cryptogenic organizing pneumonia.