Table 1.

Patients characteristics (n = 42).

Variable	Distribution	No. of patients	%
Sex	Male	30	71
	Female	12	29
Age	Median	69 years
	Range	25–84 years
Karnofsky Performance status	Median	90
	Range	50–90
Number of metastases	1	32	76
	2	10	24
	≧3	0	0
Maximum diameter (mm)	Median	19 mm
	Range	9–40 mm
Primary site	Lung	16	38
	Colon and rectum	7	17
	Head and neck	6	14
	Esophagus	4	10
	Uterus	4	10
	Kidney	2	5
	Other	3	5
Follow-up (months)	Median	20 months
	Range	1–90 months