title: Adenomatoid paratesticular tumor: report of 5 new cases and literature review.
abstract: OBJECTIVE
  To report 5 cases of adenomatoid tumor of the epididymis that have been diagnosed in the last 11 years at our hospital. We performed a bibliographic review with discussion of diagnosis, differential diagnosis and treatment of this rare type of lesion.
  
  
  METHODS
  We have performed a retrospective analysis of epididymal adenomatoid tumors diagnosed during the last 11 years in our hospital, from January 2001 to June 2012.
  
  
  RESULTS
  The average age of the series was 44 years. The predominant reason for consultation was long duration painless scrotal mass, with palpable nodule, usually dependent of the epididymis. 60% of the patients have been studied with abdominal ultrasound, which showed a nodular paratesticular lesion, with an echogenicity compatible with solid tissue. Tumor markers associated with testicular tumors (alpha-fetoprotein (AFP)), beta-human chorionic gonadotropin (b-HCG) and lactate dehydrogenase (LDH) were analyzed in 60% of the cases, being normal in all patients. 3 lumpectomies, 1 epididymectomy and 1 radical orchiectomy have been performed.
  
  
  CONCLUSIONS
  The discovery of a solid epididymal mass is uncommon in clinical practice. Physical examination and imaging tests should confirm the paratesticular origin of the lesion, being then trans-scrotal epididymectomy the treatment of choice. If diagnosis is uncertain, inguinal approach and intraoperative biopsy are mandatory.
authors.affiliation: Urology Department. Complejo Hospitalario Universitario de Santiago de Compostela. Coruña. Spain.
authors.forename: Patricia
authors.initials: P
authors.lastname: Cordeiro González
authors.forename: Daniel Adolfo
authors.initials: DA
authors.lastname: Pérez Fentes
authors.forename: Juan Jose
authors.initials: JJ
authors.lastname: Carrera Álvarez
authors.forename: Ana
authors.initials: A
authors.lastname: Puñal Pererira
mesh_terms: D018254:Adenomatoid Tumor / Q000175:diagnosis / Q000601:surgery; D000328:Adult; D004822:Epididymis; D006801:Humans; D008297:Male; D009919:Orchiectomy; D012189:Retrospective Studies; D013736:Testicular Neoplasms / Q000175:diagnosis / Q000601:surgery