title: [Paratesticular adenomatoid tumor: a report of nine cases].
abstract: BACKGROUND
  Paratesticular tumors are rare. Most of them are benign, and adenomatoid tumors are most common. These tumors sometimes infiltrate the testicular parenchyma and require differential diagnosis with malignant tumors. In such cases, intraoperative biopsy allows for performing conservative surgery.
  
  
  METHODS
  A retrospective study of nine patients with paratesticular adenomatoid tumors seen during a nine-year period (2000-2008) is reported.
  
  
  CONCLUSIONS
  Patient age (mean, 49.6 years) and most common initial signs (tender nodule) are reported. The tumor most commonly occurred as a small, usually oval, nodule in the tail of epididymis. Our series included a case each of intraparenchymal tumor of the testis and tumor of the tunica vaginalis. Diagnosis was initially made based on a ultrasound scan and subsequently confirmed by histology. Differential diagnosis and surgical treatment, performed in all patients, are reported, and also the pathological features of surgical specimens.
authors.affiliation: Servicio de Urología, Hospitales Universitarios Virgen del Rocío, Sevilla, España. raqgores@yahoo.es
authors.forename: R
authors.initials: R
authors.lastname: González Resina
authors.forename: A
authors.initials: A
authors.lastname: Carranza Carranza
authors.forename: J
authors.initials: J
authors.lastname: Congregado Córdoba
authors.forename: J M
authors.initials: JM
authors.lastname: Conde Sánchez
authors.forename: C B
authors.initials: CB
authors.lastname: Congregado Ruiz
authors.forename: R
authors.initials: R
authors.lastname: Medina López
mesh_terms: D018254:Adenomatoid Tumor / Q000737:chemistry / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D000328:Adult; D064032:Calbindin 2; D003937:Diagnosis, Differential; D004822:Epididymis / Q000473:pathology* / Q000601:surgery; D005834:Genital Neoplasms, Male / Q000737:chemistry / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007633:Keratins / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009363:Neoplasm Proteins / Q000032:analysis; D012189:Retrospective Studies; D064030:S100 Calcium Binding Protein G / Q000032:analysis; D013737:Testis / Q000473:pathology; D014463:Ultrasonography
chemical_list: D064032:Calbindin 2; D009363:Neoplasm Proteins; D064030:S100 Calcium Binding Protein G; D007633:Keratins