Synchronous independent primary osteosarcoma and adenocarcinoma of kidney.
Primary osteogenic sarcomas are extremely rare tumors of the kidney. The association with a juxtaposed renal "clear" cell carcinoma would appear to be unique, although several cases of osteogenic sarcomatous differentiation have been described within so-called sarcomatoid renal cell carcinoma variants. We report a case of synchronous independent development of both renal cell carcinoma and osteogenic sarcoma within the same kidney.
D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D005260:Female; D006801:Humans; D007668:Kidney / Q000473:pathology; D007680:Kidney Neoplasms / Q000473:pathology*; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D012516:Osteosarcoma / Q000473:pathology*