title: Synchronously occurring malignant fibrous histiocytoma of the kidney with contralateral renal cell carcinoma.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*