title: [Renal cell carcinoma associated with contralateral metacronous renal oncocytoma].
abstract: OBJECTIVE
  To report one case of renal cell carcinoma and contralateral metacronous oncocytoma, and to perform a bibliographic review on the topic.
  
  
  METHODS
  52-year-old male patient with history of right radical nephrectomy for renal cell carcinoma. On his ten-year follow-up multiple lesions appeared in the left kidney. Partial nephrectomy was performed. Pathological study showed three oncocytomas.
  
  
  CONCLUSIONS
  The presence of metacronous lesions in the contralateral kidney of a patient with history of renal cell carcinoma is rare. The presence of the same histological type of tumor should always be suspected and the management should follow this suspicion. Contralateral metacronous oncocytoma is a rare pathology which has not been reported in the literature so far.
authors.affiliation: Servicio de Urología, Fundació Puigvert Barcelona, Barcelona, España.
authors.forename: Diego
authors.initials: D
authors.lastname: Pachón Sánchez
authors.forename: Juan
authors.initials: J
authors.lastname: Palou Redorta
authors.forename: Antonio
authors.initials: A
authors.lastname: Rosales Bordes
authors.forename: Mario
authors.initials: M
authors.lastname: Navarro Genta
authors.forename: Humberto
authors.initials: H
authors.lastname: Villavicencio Mavrich
mesh_terms: D018249:Adenoma, Oxyphilic / Q000175:diagnosis*; D002292:Carcinoma, Renal Cell / Q000175:diagnosis*; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D016609:Neoplasms, Second Primary / Q000175:diagnosis*