Table 1.

Patients’ clinical data.

	Lung Cancer		Benign Pulmonary Nodule and Mass (BPNM)
No. of patients		262			52
Male/Female		164/98			32/20
Cell type	adenocarcinoma	183
	squamous cell ca.	60
	LCNEC	4
	Large cell ca.	3
	Adenosquamous ca.	3
	Carcinoid	2
	Small cell ca.	6
	Carcinosarcoma	1
pT	T1mi	2
	T1a	70
	T1b	49
	T1c	3
	T2a	78
	T2b	19
	T3	35
	T4	6
pN	N0	209
	N1	33
	N2	20
pM	M0	254
	M1a	5
	M1b	2
	M1c	1
pStage	Stage IA	118
	Stage IB	58
	Stage IIA	26
	Stage IIB	21
	Stage IIIA	30
	Stage IIIB	1
	Stage IVA	7
	Stage IVB	1
Causes of BPNM			Inflammatory	Mycobacterial disease	13
				Pneumonia	13
				Pulmonary abscess	8
				Pulmonary scar	3
				Organized pneumonia	2
				Other	2
			Non-inflammatory	Hamartoma	5
				Pulmonary sequestration	2
				Other	4
Diagnosis and therapy	Resection	262		Resection	36
				Bacterial culture	3
				Decreased size or disappearance	13