title: [Management of a breast cystic syndrome: Guidelines].
abstract: OBJECTIVE
  Breast cysts are common, often discovered incidentally or subsequently to pain or palpable mass. The purpose of these recommendations is to describe the sonographic findings for classifying breast cystic lesions, to analyze the value and contribution of various imaging techniques and sampling and to provide a management strategy.
  
  
  METHODS
  Literature review conducted by a small group and then reviewed and validated by the group designated by the Collège national des gynécologues et obstétriciens français (CNGOF) to make recommendations for clinical practice for benign breast lesions.
  
  
  RESULTS
  Breast cysts are classified in 3 categories: simple cysts, complicated cysts and complex cysts. For simple cysts, after ultrasound, no further imaging is necessary, cytology is to consider only as analgesic. For complicated cysts, a control at 4-6 months is recommended; the use of cytology depends on the context (familial risk, difficulty of follow-up). In case of complex cyst, sampling by cytology or biopsy is recommended. More assessments of other imaging tests are reported.
  
  
  CONCLUSIONS
  The sonographic characterization is essential for management of breast cyst.
authors.affiliation: Service de chirurgie et cancérologie gynécologique et mammaire, Pitié-Salpêtrière, AP-HP, université Pierre-et-Marie-Curie, 83, boulevard de l'Hôpital, 75013 Paris 6, France.
authors.forename: C
authors.initials: C
authors.lastname: Uzan
authors.affiliation: Imagerie Duroc, boulevard du Montparnasse, 75006 Paris, France.
authors.forename: J-Y
authors.initials: JY
authors.lastname: Seror
authors.affiliation: Cabinet médical, 146, avenue Ledru-Rollin, 75011 Paris, France; Service de gynécologie-obstétrique et médecine de la reproduction, hôpital Tenon, AP-HP, 4, rue de la Chine, 75020 Paris, France. Electronic address: seror.je@laposte.net.
authors.forename: J
authors.initials: J
authors.lastname: Seror
mesh_terms: D005260:Female; D005348:Fibrocystic Breast Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D017410:Practice Guidelines as Topic; D014463:Ultrasonography
keywords: Biopsie; Biopsy; Breast cyst; Cytologie; Cytology; Elastography; IRM; Kyste du sein; MRI; Ultrasound; Échographie; Élastographie