title: [An aggressive inguinal (parafunicular) angiomyxoma in a male patient].
abstract: OBJECTIVE
  To report a case of aggressive inguinal angiomyxoma in a male patient.
  
  
  METHODS
  An 82-year-old male patient presented with a well-defined, 6 cm. parafunicular mass in the right groin. The mass was located adjacent to the spermatic cord and had been noted 8 years earlier. Patient evaluation included CT, ultrasound and immunohistochemical studies.
  
  
  RESULTS
  The CT and US findings suggested lymph node enlargement. Microscopic analysis showed a myxoid tumor with partially infiltrating margins, vascular channels of small-sized vessels with thick walls occasionally with hyalinization and spindle-shaped or stellate mesenchymal cells with ill-defined margins without atypia or mitosis that were positive for vimentin and negative for actin, desmin, keratins, CD34 and protein S-100. No tumor recurrence or metastasis has been observed at 26-months' follow-up.
  
  
  CONCLUSIONS
  To our knowledge, this is one of the few cases of inguinal angiomyxoma in male patients; 16 have been reported to date. This neoplasm appears to originate from pelvic soft tissue fibroblasts.
authors.affiliation: Servicio de Anatomía Patológica, Hospital Central de Asturias (Hospital Covadonga), Oviedo, España.
authors.forename: B
authors.initials: B
authors.lastname: Madrigal
authors.forename: M
authors.initials: M
authors.lastname: Veiga
authors.forename: A
authors.initials: A
authors.lastname: Vara
authors.forename: M J
authors.initials: MJ
authors.lastname: Pérez del Río
authors.forename: F
authors.initials: F
authors.lastname: González Carril
authors.forename: M F
authors.initials: MF
authors.lastname: Fresno
authors.forename: A
authors.initials: A
authors.lastname: Herrero
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005834:Genital Neoplasms, Male / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006119:Groin; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009232:Myxoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009361:Neoplasm Invasiveness; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013085:Spermatic Cord / Q000473:pathology / Q000601:surgery