Table 1.

Patient demographic and clinical characteristics.

Patient characteristic		Number of cases (%)
Age	≥65	32 (64%)
	<65	18 (36%)
Gender	Male	37 (74%)
	Female	13 (26%)
Tumor location	upper and middle lobes	27 (54%)
	right lobe	23 (46%)
Tumor depth	central	9 (18%)
	peripheral	41 (82%)
Maximum diameter (cm)	2-3cm	11 (22%)
	3-5cm	31 (62%)
	>5cm	8 (16%)
Primary pulmonary lesion	adenocarcinoma	21 (42%)
	squamous cell carcinoma	15 (30%)
	small cell carcinoma	1 (2%)
	others	2 (4%)
Metastatic lesion from	colorectal cancer	3 (6%)
	breast cancer	2 (4%)
	kidney cancer	1 (2%)
	sarcoma	2 (4%)
	esophageal	2 (4%)
	carcinoma, unknown primary	1 (2%)
Complications	pneumothorax	3 (6%)
	pleural effusion	1 (2%)
	pulmonary hemorrhage	2 (4%)