title: [Splenosis simulating a renal mass].
abstract: OBJECTIVE
  To report a case of splenosis and to review its diagnosis and treatment in the related literature.
  
  
  METHODS
  We report the case of an asymptomatic 49-year-old man with splenectomy performed when he was 22. Lumbo-sacral MRI showed a left perirenal mass probably with renal origin.
  
  
  RESULTS
  CT scan ruled out the renal origin. Due to previous splenectomy, splenosis was suspected. 99mTc-labeled heat-damaged erythrocytes scan confirmed the diagnosis. No treatment was applied.
  
  
  CONCLUSIONS
  Clinicians should be aware that unknown origin masses, mainly in the peritoneal cavity, with a history of previous splenic trauma or splenectomy, might represent splenosis. A non-invasive diagnosis can be achieved with 99mTc-sulphur colloid scan, 99mTc-labeled heat-damaged erythrocytes or ferrumoxide-enhanced MRI, thus avoiding unnecessary surgical explorations.
authors.affiliation: Servicio de Urología, Complejo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, España. danielfentes@yahoo.es
authors.forename: Daniel
authors.initials: D
authors.lastname: Pérez Fentes
authors.forename: Gerardo
authors.initials: G
authors.lastname: Pazos González
authors.forename: Miguel
authors.initials: M
authors.lastname: Blanco Parra
authors.forename: Virginia
authors.initials: V
authors.lastname: Pubul Núñez
authors.forename: Valentín
authors.initials: V
authors.lastname: Toucedo Caamaño
authors.forename: Ana
authors.initials: A
authors.lastname: Puñal Pereira
authors.forename: Serafín
authors.initials: S
authors.lastname: Novás Castro
authors.forename: Pedro
authors.initials: P
authors.lastname: Lamas Cedrón
authors.forename: Manuel
authors.initials: M
authors.lastname: Villar Núñez
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D017890:Splenosis / Q000175:diagnosis*