title: [Nonpalpable breast lesions: correlation of the BI-RADS classification and histologic findings].
abstract: Diagnosis of nonpalpable breast lesions too often requires a breast biopsy or tumorectomy.
  
  
  OBJECTIVE
  To validate the American College of Radiology (ACR) classification and lexicon using a standardized description to improve the uniformity of management of abnormal mammographic lesions and reduce the number of unnecessary tumorectomies.
  
  
  METHODS
  This prospective study was conducted in Libreville Hospital Center over a 4-year period and compared the histologic results of 150 nonpalpable masses identified by mammography and their ACR classification to assess the correlation between the radiographic and histologic findings.
  
  
  RESULTS
  There were 90 cases (60%) of ACR2 lesions, 28 cases (18%) of ACR3, 6 cases (4%) of ACR4 and 26 cases (17%) of ACR5 lesions. Histologic results showed that 3% of the ACR2 lesions were malignant, 11% of the ACR3, 67% of the ACR4 and 92% of the ACR5 lesions.
  
  
  CONCLUSIONS
  The correlations showed that the ACR classification was highly reliable for ACR2 and ACR5 lesions and makes it possible to optimize their treatment. ACR3 and ACR4 lesions must be watched carefully.
authors.affiliation: Centre hospitalier de Libreville (CHL), BP 2758, Libreville, Gabon. smayi3@yahoo.fr
authors.forename: Sosthène
authors.initials: S
authors.lastname: Mayi-Tsonga
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Meye
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Ngou-Mve-Ngou
authors.forename: Gabriel
authors.initials: G
authors.lastname: Mendome
authors.forename: Mathieu
authors.initials: M
authors.lastname: Mounanga
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001706:Biopsy; D001943:Breast Neoplasms / Q000000981:diagnostic imaging* / Q000235:genetics / Q000473:pathology; D003278:Contraceptives, Oral, Hormonal / Q000627:therapeutic use; D005260:Female; D005681:Gabon; D006801:Humans; D008327:Mammography / Q000145:classification*; D015412:Mastectomy, Segmental; D008593:Menopause; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging; D011446:Prospective Studies; D015203:Reproducibility of Results
chemical_list: D003278:Contraceptives, Oral, Hormonal