title: [Small cell lung carcinoma metastasis to clear cell renal cell carcinoma].
abstract: The paper describes an anatomical pathology case of synchronous multiple primary carcinoma in a 75-year-old man with a tumor-to-tumor phenomenon of small cell lung carcinoma metastasis to clear cell renal cell carcinoma (tumor-to-tumor).
authors.forename: G I
authors.initials: GI
authors.lastname: Makarniaeva
authors.forename: K V
authors.initials: KV
authors.lastname: Opalenov
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000096:biosynthesis*; D002292:Carcinoma, Renal Cell / Q000175:diagnosis / Q000235:genetics / Q000473:pathology* / Q000556:secondary; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis; D055752:Small Cell Lung Carcinoma / Q000175:diagnosis / Q000235:genetics / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor