title: [Phyllodes tumor: institutional experience].
abstract: BACKGROUND
  Phyllodes tumor represents one of the fibroepithelial breast neoplasms that accounts for 0.3% to 1% of the breast tumors.
  
  
  OBJECTIVE
  To describe a case series of patients with phyllodes tumor diagnosis.
  
  
  METHODS
  We retrospectively reviewed the medical records of patients that had confirmed histological phyllodes tumor collected over a period of ten years.
  
  
  RESULTS
  The incidence was 0.8%, 12.5% of cases corresponded to malignant phyllodes. The average age was 35 years (range 14-50 years); the most frequent site of localization was the superior and external quadrant of the breast; the average tumoral size by image studies (ultrasound or mastography) and by direct measurement was 61 mm (13-150 mm) and 77 mm (30-300 mm), respectively. One case coexisted with pregnancy.
  
  
  CONCLUSIONS
  It is a rare neoplasm, andthe clinician must be aware of its timely diagnosis and treatment, if not some cases will develop breast deformity and some others will be borderline or malignant.
authors.affiliation: Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, México. aranda_floresc@hotmail.com
authors.forename: Carlos
authors.initials: C
authors.lastname: Aranda Flores
authors.forename: Emilio José
authors.initials: EJ
authors.lastname: Olaya Guzmán
authors.forename: Alinne
authors.initials: A
authors.lastname: Colin Valenzuela
authors.forename: Pedro Silvestre
authors.initials: PS
authors.lastname: Miguel Pérez
mesh_terms: D000293:Adolescent; D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D003557:Phyllodes Tumor / Q000175:diagnosis / Q000601:surgery; D012189:Retrospective Studies; D055815:Young Adult