Table 1: Influence of pathologic variables on metastatic pattern.

ParametersTotalAbsence of metastasisExtrapulmonary metastasisPulmonary metastasis value
Patients (No.)584783

Age at diagnosis    
 Median age (range)46 (18–80)44 (18–80)51 (37–66)58 (32–72)NS
  ≤452824310.699529
  >45302352

Gender    
 Male332733NS
 Female2520500.127731

Tumor size    
 Median size (range)9.3 (1.2–25)8.7 (1.2–20)15.5 (10–25)9 (4–14)
  ≥10 cm3129020.027573
  ≥10 cm191441
  unknown8440

Tumor depth   
 Superficial131112NS
 Deep3932510.351308
 Unknown6420

Tumor site    
 Extremity484152NS
 Trunk106310.29337

Histological grade    
 Low grade383440
 High grade2013430.026703