Table 1.

Summary of clinical information of BAL specimen for the LC-MS/MS analysis.

Cases with diagnoses of benign lesions
Case	Age/Sex	Clinical History	CT findings	Cytological Diagnosis	Pathologic Stage
1	28/F	Pneumonia	Right lung density	Benign respiratory epithelium and pulmonary alveolar macrophages	N/A
2	68/F	Lung nodules	1.0 cm non-calcified nodule	Benign respiratory epithelium and pulmonary alveolar macrophages	N/A
3	18/M	pneumonia	Atelectasis and consolidation	Benign respiratory epithelium	N/A
4	62/F	Fever	Bilateral density	Benign respiratory epithelium	N/A
Cases with diagnoses of primary lung adenocarcinomas
5	69/F	Lung mass	6.5 cm mass	Adenocarcinoma	pT3
6*	83/F	Lung mass	1.7 cm mass	Adenocarcinoma	pT1
7	61/F	Lung mass	1.5 cm mass	Adenocarcinoma	pT1
8	69/F	Lung mass	6.0 cm mass	Adenocarcinoma	pT3

N/A: not applicable.

^*the patient developed brain metastasis later.