title: Pre-operative MR-mammography in breast cancer patients.
abstract: OBJECTIVE
  Pre-operatively, to exclude multiple invasive tumours not discovered by mammography and sonography in patients referred for breast conservation surgery.
  
  
  METHODS
  A supplementary MR-mammography was offered to all patients with mammographic and/or sonographic ascertained tumours less than 2 cm in diameter.
  
  
  RESULTS
  Forty patients were offered this additional examination. In accordance with the MR diagnosis, 51% of the planned surgical procedures were changed. Nine patients had more than one invasive tumour, and in four patients the tumour was >2cm in diameter. One patient had no tumour at all, and in four patients the MR-mammography suggested benign fibroadenomas, which resulted in small excisions. One patient with a suspect MR-mammography presented sclerosing adenosis at surgery. Three patients had to be excluded due to MR problems. Ten patients preferred mastectomy, although the MR-mammography had shown only a single invasive tumour.
  
  
  CONCLUSIONS
  MR-mammography is recommended as a pre-surgical diagnostic procedure in patients allocated to breast conservation surgery.
authors.affiliation: Department of Radiology, Hjørring District Hospital, Denmark.
authors.forename: C
authors.initials: C
authors.lastname: Conrad
authors.forename: M T
authors.initials: MT
authors.lastname: Corfitsen
authors.forename: N
authors.initials: N
authors.lastname: Gyldholm
authors.forename: F L
authors.initials: FL
authors.lastname: Christiansen
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008327:Mammography / Q000379:methods*; D015412:Mastectomy, Segmental; D008875:Middle Aged; D011446:Prospective Studies