title: Breast findings incidentally detected on body MRI.
abstract: OBJECTIVE
  To evaluate breast findings incidentally detected on body MRI.
  
  
  METHODS
  A retrospective review of the institutional database identified 1752 body MRI performed between January 2015 and September 2015. MRI of women with breast tissue visible in the field-of-view were reviewed for breast findings. Breast findings were classified with the breast imaging reporting and data system (BI-RADS) lexicon. The standard statistic, costs of additional work-up, and the clinical relevance were used to describe breast findings, and we calculated 95 % exact confidence intervals (CIs).
  
  
  RESULTS
  440 body MRI of 440 women (mean age: 57 ± 20 years) included breast tissue in the field-of-view. A total of 41 breast findings were identified in 41 patients. Breast findings were classified BI-RADS 2 N = 25, BI-RADS 3 N = 13, BI-RADS 4 N = 3. A total of 3.6 % [95 % CI 1.6 %, 5.6 %] women with breast tissue visible on MRI had a recommendation for further imaging work-up for a breast finding. The 18.7 % (3 of 16) of these patients had a clinically important finding (breast cancer). Further imaging evaluation increased costs of €108.3 per patient with a breast finding.
  
  
  CONCLUSIONS
  Clinically important breast findings could be detected on body MRI in up to 0.7 % (3 of 440) of women.
authors.affiliation: Department of Health Sciences (DISSAL), University of Genova, Via A. Pastore 1, 16132 Genoa, Italy.
authors.forename: Bianca
authors.initials: B
authors.lastname: Bignotti
authors.affiliation: Department of Diagnostic Senology, IRCCS Azienda Ospedaliera Universitaria San Martino IST-Istituto Nazionale per la Ricerca sul Cancro, Largo Rosanna Benzi 10, 16132 Genoa, Italy.
authors.forename: Giulia
authors.initials: G
authors.lastname: Succio
authors.affiliation: Department of Health Sciences (DISSAL), University of Genova, Via A. Pastore 1, 16132 Genoa, Italy.
authors.forename: Francesca
authors.initials: F
authors.lastname: Nosenzo
authors.affiliation: Department of Health Sciences (DISSAL), University of Genova, Via A. Pastore 1, 16132 Genoa, Italy.
authors.forename: Michela
authors.initials: M
authors.lastname: Perinetti
authors.affiliation: Department of Health Sciences (DISSAL), University of Genova, Via A. Pastore 1, 16132 Genoa, Italy.
authors.forename: Licia
authors.initials: L
authors.lastname: Gristina
authors.affiliation: Department of Health Sciences (DISSAL), University of Genova, Via A. Pastore 1, 16132 Genoa, Italy.
authors.forename: Stella
authors.initials: S
authors.lastname: Barbagallo
authors.affiliation: Department of Health Sciences (DISSAL), University of Genova, Via A. Pastore 1, 16132 Genoa, Italy.
authors.forename: Lucia
authors.initials: L
authors.lastname: Secondini
authors.affiliation: Department of Diagnostic Senology, IRCCS Azienda Ospedaliera Universitaria San Martino IST-Istituto Nazionale per la Ricerca sul Cancro, Largo Rosanna Benzi 10, 16132 Genoa, Italy.
authors.forename: Massimo
authors.initials: M
authors.lastname: Calabrese
authors.affiliation: Institute of Anatomy, Department of Experimental Medicine, University of Genova, Via Leon Battista Alberti, 2, 16132 Genoa, Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Tagliafico
keywords: Body; Breast; Cancer; Costs; Magnetic resonance imaging