Table 1.

Influence of pathologic variables on metastatic pattern.

Parameters	Total	Absence of metastasis	Extrapulmonary metastasis	Pulmonary metastasis	P value
Patients (No.)	58	47	8	3
Age at diagnosis
Median age (range)	46 (18–80)	44 (18–80)	51 (37–66)	58 (32–72)	NS
≤45	28	24	3	1	0.699529
>45	30	23	5	2
Gender
Male	33	27	3	3	NS
Female	25	20	5	0	0.127731
Tumor size
Median size (range)	9.3 (1.2–25)	8.7 (1.2–20)	15.5 (10–25)	9 (4–14)	P < 0.05
≥10 cm	31	29	0	2	0.027573
≥10 cm	19	14	4	1
unknown	8	4	4	0
Tumor depth
Superficial	13	11	1	2	NS
Deep	39	32	5	1	0.351308
Unknown	6	4	2	0
Tumor site
Extremity	48	41	5	2	NS
Trunk	10	6	3	1	0.29337
Histological grade
Low grade	38	34	4	0	P < 0.05
High grade	20	13	4	3	0.026703