[Case of a benign and malignant extraorganic retroperitoneal tumor].
D000368:Aged; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000473:pathology*; D012187:Retroperitoneal Space / Q000473:pathology
Sluchaĭ na dobrokachestven i zlokachestven izvunorganen retroperitonealen tumor.