1.

各病灶的临床特征

Clinical characteristics of the lesions

Clinical characteristics	Number (%)
Total	833 (100%)
Location
Right upper lobe	298 (35.77%)
Right middle lobe	71 (8.52%)
Right lower lobe	158 (18.97%)
Lef tupper lobe	202 (24.25%)
Left lower lobe	104 (12.48%)
Pathological pattern
Adenocarcinoma	796 (95.56%)
Squamous carcinoma	21 (2.52%)
Large cell carcinoma	9 (1.08%)
Pulmonary carcinoid	3 (0.36%)
Adenosquamous carcinoma	2 (0.24%)
Pleomorphic carcinoma	1 (0.12%)
Mucosa associated lymphoid tissue type (MALT)	1 (0.12%)
Imageological characteristics
Ground glass nodule (GGN)	172 (20.65%)
Ground glass opacity (GGO)	661 (79.35%)