title: [Coexistence of nephroblastoma and hepatoblastoma in a 5-year-old boy].
mesh_terms: D000367:Age Factors; D006528:Carcinoma, Hepatocellular / Q000473:pathology*; D002675:Child, Preschool; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008113:Liver Neoplasms / Q000473:pathology*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D009396:Wilms Tumor / Q000473:pathology*
vernacular_title: Współistnienie dwóch nowotworów: nephroblastoma i hepatoblastoma u 5-letniego chłopca