Table 2. The pathological diagnosis of 123 lesions
| Pathological Results | Number | |
| benign（n=63） | inflammation | 12 |
| tuberculosis | 29 | |
| follow-up or others | 22 | |
| malignant（n=60） | adenocarcinoma | 30 |
| squamous cell carcinoma | 16 | |
| small cell carcinoma | 1 | |
| bronchioloalveolar carcinoma | 6 | |
| follow-up or others | 7 |