title: An autopsy case of collision tumor.
mesh_terms: D001344:Autopsy; D006528:Carcinoma, Hepatocellular / Q000473:pathology*; D006801:Humans; D007890:Leiomyosarcoma / Q000473:pathology*; D008113:Liver Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D012186:Retroperitoneal Neoplasms / Q000473:pathology*