title: [Lymphoepithelioma-like undifferentiated carcinoma of the bladder. Case report].
abstract: OBJECTIVE
  High-grade lymphoepithelioma-like urothelial carcinoma is a rare neoplasia in the bladder, and its relationship with Epstein-Barr virus has not been demonstrated.
  
  
  METHODS
  We report the case of an old male presenting with recurrent hematuria diagnosed of this tumor.
  
  
  RESULTS
  These are neoplasias with a great lymphocyte component, sometimes predominant, which may lead to histological confusion with inflammatory processes like chronic cystitis or even lymphomas.
  
  
  CONCLUSIONS
  Despite their infiltrative character and high cytological and architectural grade their prognosis is better than urothelial carcinomas of the same grade and stage, but this only applies for pure forms and those with predominant lymphoepithelioma-like pattern.
authors.affiliation: Departamento de Anatomía Patológica, Hospital Universitario Virgen Macarena, Sevilla, España. javiertorresgomez@yahoo.es
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Torres Gómez
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Rivera Hueto
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Torres Olivera
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D002277:Carcinoma / Q000175:diagnosis / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D003937:Diagnosis, Differential; D006417:Hematuria / Q000209:etiology; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D009361:Neoplasm Invasiveness; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor