title: Comparison of clinicopathological findings among patients whose mammography results were classified as category 4 subgroups of the BI-RADS.
abstract: OBJECTIVE
  Our aim is to compare mammographic, demographic and clinicopathological characteristics of patients whose mammographies were classified as subgroups of BI-RADS 4 category (Breast Imaging - Reporting and Data System).
  
  
  METHODS
  In total, 103 patients with mammography (Senographe 600t Senix HF; General Electric, Moulineaux, France) results classified as BI-RADS 4 were included in the study. Demographic data (age, menopause, and family history) were recorded. All data were compared among BI-RADS 4 subgroups.
  
  
  RESULTS
  In all, 68.9% (71/103), 7.8% (8/103) and 23.3% (24/103) the patients were in groups BI-RADS 4A, 4B and 4C, respectively. The incidence of malignancy was higher in Groups 4B and 4C than in Group 4A (p<0.05), but similar in Groups 4B and 4C (p>0.05). Mean age was lower in Group 4B than in Groups 4A and 4C (p<0.05). A positive family history was more common in Group 4A than in Group 4B (p=0.025). The frequency of menopausal patients was greater in Groups 4A and 4C than in Group 4B (p=0.021, and 0.003, respectively).
  
  
  METHODS
  The rate of malignancy was higher in Groups 4B, and 4C than in Group 4A. A positive family history was more common in Group 4A than in Group 4C. Groups 4A, and 4C patients tended to be older and were more likely to be menopausal than Group 4B patients.
authors.affiliation: Department of General Surgery, Istanbul Medeniyet University, Goztepe Training and Research Hospital, Istanbul, Turkey.
authors.forename: Ihsan Metin
authors.initials: IM
authors.lastname: Leblebici
authors.affiliation: Department of General Surgery, Bezmialem Vakif University Faculty of Medicine, Istanbul, Turkey.
authors.forename: Suleyman
authors.initials: S
authors.lastname: Bozkurt
authors.affiliation: Department of General Surgery, Istanbul Medeniyet University, Goztepe Training and Research Hospital, Istanbul, Turkey.
authors.forename: Turgut Tunc
authors.initials: TT
authors.lastname: Eren
authors.affiliation: Department of General Surgery, Istanbul Medeniyet University, Goztepe Training and Research Hospital, Istanbul, Turkey.
authors.forename: Ibrahim Ali
authors.initials: IA
authors.lastname: Ozemir
authors.affiliation: Department of General Surgery, Istanbul Medeniyet University, Goztepe Training and Research Hospital, Istanbul, Turkey.
authors.forename: Julide
authors.initials: J
authors.lastname: Sagiroglu
authors.affiliation: Department of General Surgery, Istanbul Medeniyet University, Goztepe Training and Research Hospital, Istanbul, Turkey.
authors.forename: Orhan
authors.initials: O
authors.lastname: Alimoglu
keywords: 4B and 4C; BI-RADS 4; mammography; subcategories 4A