eighteen percent were advanced primaries , 26 % were recurrent , and 56 % metastatic tumors in the head and neck ( 7 % ) , body wall ( 7 % ) , extremity ( 4 % ) , abdominal cavity ( 17 % ) , pelvis ( 17 % ) , lung ( 15 % ) , or liver ( 30 % ) ;
C0230168
abdominal cavity
C0023884
liver