title: [Primary epididymal tumors].
abstract: OBJECTIVE
  To improve the diagnosis of primary epididymal tumors.
  
  
  METHODS
  In 23 primary epididymal tumors (22 benign and 1 malignant), 14 were adenomatoid tumors, 6 were leiomyomas, 1 was multiple fibrous pseudomonas and 1 was sclerosing hemangioma. Epididymal adenocarcinoma was seen in a 57-year-old man.
  
  
  RESULTS
  Epididymal tumors might be easily misdiagnosed as epididymal tuberculosis, chronic epididymis and spermatocele. Apart from certain benign clinical characteristics, benign epididymal tumors could be diagnosed by B-ultrasonography and aspiration biopsy. Most malignant tumors of epididymis presented as rapidly growing scrotal masses and cured by the removal of tumors or the whole epididymis of the same side. 19 of 22 cases were free from recurrence.
  
  
  CONCLUSIONS
  Malignant epididymal tumors should be treated as malignant tumors of testis and their prognosis is extremely poor.
authors.affiliation: Department of Urology, First Hospital of Beijing Medical Universiy, Beijing 100034.
authors.forename: B
authors.initials: B
authors.lastname: Pan
authors.forename: Y
authors.initials: Y
authors.lastname: Song
authors.forename: X
authors.initials: X
authors.lastname: Kong
authors.forename: Z
authors.initials: Z
authors.lastname: Xue
authors.forename: Y
authors.initials: Y
authors.lastname: Guo
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000601:surgery; D018254:Adenomatoid Tumor / Q000175:diagnosis / Q000601:surgery; D000293:Adolescent; D000328:Adult; D004822:Epididymis; D005500:Follow-Up Studies; D005834:Genital Neoplasms, Male / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans; D007889:Leiomyoma / Q000175:diagnosis / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D055815:Young Adult