title: Benign papilloma on core biopsy requires surgical excision.
abstract: BACKGROUND
  When a papillary lesion is identified on core biopsy of an impalpable breast lesion, standard practice involves excisional biopsy. Recent literature has questioned the need for surgical excision in patients with benign core biopsy and radiological concordance. Our aim was to assess whether surgical excision is required by targeting this concordant group in a large screen-detected population.
  
  
  METHODS
  A retrospective review of a prospectively collected database of all benign papillary core biopsies between February 1995 and September 2007 at North Western Breast Screen and Monash Breast Screen in Melbourne, Australia was performed. All patients had surgical excision, enabling correlation between core and final excisional biopsy results on all lesions. All histology reports were reviewed and the radiology was reassessed.
  
  
  RESULTS
  During a 14-year period, 5783 core biopsies were performed from 633,163 screening mammograms. Eighty patients (0.01%) had benign papilloma on core biopsy, no patients had atypia on core biopsy, and all patients had benign radiological features. Of the 80 patients, 15 patients were found to have ductal carcinoma in situ (8) or invasive ductal carcinoma (7) on final pathology, yielding a 19% malignant rate.
  
  
  CONCLUSIONS
  Core biopsy showing benign papillary lesion, even where radiology is also suggestive of a benign process, cannot exclude malignancy, and therefore surgical excision is required.
authors.affiliation: Department of Surgery, Royal Melbourne Hospital, Grattan Street, Parkville 3050, Australia. anitaskan@hotmail.com
authors.forename: Anita Rohini
authors.initials: AR
authors.lastname: Skandarajah
authors.forename: Lee
authors.initials: L
authors.lastname: Field
authors.forename: Arlene
authors.initials: A
authors.lastname: Yuen Larn Mou
authors.forename: Malcolm
authors.initials: M
authors.lastname: Buchanan
authors.forename: Jill
authors.initials: J
authors.lastname: Evans
authors.forename: Stewart
authors.initials: S
authors.lastname: Hart
authors.forename: Gregory Bruce
authors.initials: GB
authors.lastname: Mann
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D001940:Breast / Q000473:pathology* / Q000601:surgery; D001943:Breast Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D010212:Papilloma / Q000473:pathology* / Q000601:surgery*; D012189:Retrospective Studies