title: [Evaluation of breast microcalcifications according to Breast Imaging Reporting and Data System (BI-RADS) and Le Gal's classifications].
abstract: OBJECTIVE
  the aim of this study is to evaluate the accuracy of mammography in the diagnosis of suspicious breast microcalcifications, using BI-RADS and Le Gal's classifications.
  
  
  METHODS
  one hundred and thirty cases were selected with mammograms contain only microcalcifications of file and initially classified as suspicious (categories 4 and 5) without lesions clinical detectable and reclassified by two examiners, getting a consensus diagnosis. The biopsies were reviewed by two pathologists getting also a consensus diagnosis. Both, mammogram and histopathologic analysis were double blinded reviewed. Chi-square test, Fleiss-square statistic and EPI-INFO 6.0 were used in this study.
  
  
  RESULTS
  the correlation between histopathological and mammographic analysis using BI-RADS and Le Gal classification showed the same sensitivity of 96.4%, specificity of 55.9 and 30.3%, positive predictive value (PPV) of 37.5 and 27.5%, and accuracy of 64.6 and 44.6% respectively. The PPV by BI-RADS categories was: category 2, 0%; category 3, 1.8%; category 4, 30.8%; and category 5, 60%. The PPV by Le Gal classification was: category 2, 3.1%; category 3, 18.1%; category 4, 26.4%;category 5, 66.7%, and non classified 5.2%.
  
  
  CONCLUSIONS
  the results were better for the classification of BI-RADS, but it did not get to reduce the ambiguity in assessment of breast microcalcifications.
authors.affiliation: Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil. lucioperri@uai.com.br
authors.forename: Lúcio Márcio Perri de
authors.initials: LM
authors.lastname: Resende
authors.forename: Marco Antônio Rodrigues Freire
authors.initials: MA
authors.lastname: Matias
authors.forename: Gracinda Maria Baltazar de
authors.initials: GM
authors.lastname: Oliveira
authors.forename: Márcio Almeida
authors.initials: MA
authors.lastname: Salles
authors.forename: Frederico Henrique Corrêa
authors.initials: FH
authors.lastname: Melo
authors.forename: Helenice
authors.initials: H
authors.lastname: Gobbi
mesh_terms: D001941:Breast Diseases / Q000145:classification / Q000000981:diagnostic imaging* / Q000473:pathology*; D002114:Calcinosis / Q000145:classification / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D008327:Mammography; D012189:Retrospective Studies; D012680:Sensitivity and Specificity