title: Tumour-to-tumour metastases: prostate carcinoma metastasising to a renal oncocytoma.
abstract: This is a case report of prostate carcinoma metastasising to a renal oncocytoma. The report demonstrates the unusual presentation of metastases from a common cancer to a common benign tumour, and reviews the rare phenomenon of tumour-to-tumour metastases.
authors: Department of Cellular Pathology,  Imperial College Healthcare NHS Trust, London,  UK.
authors: Gemma
authors: G
authors: Petts
authors: Tina
authors: T
authors: Rashid
authors: David
authors: D
authors: Hrouda
authors: Nye-Thane
authors: NT
authors: Ngo
mesh_terms: D018249:Adenoma, Oxyphilic / Q000175:diagnosis / Q000556:secondary* / Q000601:surgery; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology* / Q000556:secondary / Q000601:surgery; D008297:Male; D016609:Neoplasms, Second Primary; D009392:Nephrectomy; D011471:Prostatic Neoplasms / Q000175:diagnosis / Q000556:secondary*; D011859:Radiography