title: [Mammary hydatid cyst diagnosed by fine needle aspiration].
abstract: BACKGROUND
  Echinococcal involvement of the breast is extremely rare and usually not included in the differential diagnosis of breast lumps.
  
  
  METHODS
  This is an unreported case of a 56-year-old woman who came with a 3 cm mammary mass. Mammography showed a dense well-circumscribed lesion with calcifications. The diagnosis was established by fine needle aspiration and confirmed by pathological study.
  
  
  CONCLUSIONS
  Hydatid cyst of the breast is rare. The diagnosis by fine needle aspiration is controversial. The treatment is based on complete excision of the cyst.
authors.affiliation: Laboratoire d'anatomie et de cytologie pathologiques, CHU Habib-Bourguiba, 3029 Sfax, Tunisie.
authors.forename: S
authors.initials: S
authors.lastname: Charfi
authors.forename: A
authors.initials: A
authors.lastname: Khabir
authors.forename: L
authors.initials: L
authors.lastname: Ayadi
authors.forename: I
authors.initials: I
authors.lastname: Chtourou
authors.forename: I
authors.initials: I
authors.lastname: Bahri
authors.forename: B
authors.initials: B
authors.lastname: Ben Ayed
authors.forename: M
authors.initials: M
authors.lastname: Guermazi
authors.forename: T
authors.initials: T
authors.lastname: Boudawara
mesh_terms: D044963:Biopsy, Fine-Needle; D001940:Breast / Q000473:pathology* / Q000601:surgery; D001941:Breast Diseases / Q000175:diagnosis* / Q000469:parasitology* / Q000601:surgery; D004443:Echinococcosis / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged