Table 1. The final diagnosis of all patients.

Types of diagnosis	No.
Malignant diagnosis	119
Lung adenocarcinoma	61
Lung squamous cell carcinoma	31
Non–small lung cell carcinoma (not otherwise specified)	4
Sarcoma	3
Lymphoepithelioma-like carcinoma	2
Lymphoma	2
Metastatic carcinoma	7
Small cell lung carcinoma	3
Other	6
Benign diagnosis	90
Nonspecific inflammation	60
Specific inflammation	28
Benign tumor	2
Total	209