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La radiologia medica

, Volume 123, Issue 11, pp 809–817 | Cite as

Do clinical and radiologic features help predict malignancy of B3 breast lesions without epithelial atypia (B3a)?

  • Iliana Bednarova
  • Viviana Londero
  • Anna Linda
  • Rossano Girometti
  • Michele Lorenzon
  • Sandra Bednarova
  • Chiara Zuiani
BREAST RADIOLOGY
  • 108 Downloads

Abstract

Objectives

To evaluate excision histology outcome of B3a lesions diagnosed at imaging-guided core biopsy and assess whether clinical and radiologic features may predict upgrade to malignancy.

Methods

A total of 153 B3a lesions (74 papillomas, 51 radial scars and 28 fibro-epithelial lesions) that underwent surgical excision were assessed. PPV for malignancy in all B3a lesions and specific for each sub-category was evaluated. Multivariate analysis was conducted to identify association between clinical (age, family or personal history of breast cancer, symptoms), diagnostic findings (imaging modality, lesion size, final BI-RADS category) and final excision outcome.

Results

Eleven (7%) of 153 B3a lesions were upgraded to malignancy. All carcinomas diagnosed on excision were non-high grade DCIS. Following features were significantly associated with malignancy: lesions identified only on mammography (3/21; 14%), both mammography and ultrasound (7/44; 16%), lesion size > 10 mm (10/74; 13.5%) and BI-RADS category 4-5 (8/29; 27.6%). The absence of residual microcalcification after biopsy was associated with decreased risk for malignancy (15/16[93.7%]; p = 0.0297). Lesion size > 10 mm (OR = 9.3832; 95%; p = 0.0398) and BI-RADS category 4–5 (OR = 12.6004; 95%; p = 0.0006) were found to be independent predictors of upgrade to malignancy.

Conclusions

B3a lesions are associated with low risk of malignancy at excision. Lesion size > 10 mm and BI-RADS 4–5 category may represent useful predictors of upgrade to malignancy.

Keywords

B3a lesions Core biopsy Excisional biopsy Positive predictive value Breast cancer 

Notes

Funding

The authors state that this work has not received any funding.

Compliance with ethical standards

Conflict of interest

The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.

Guarantor

The scientific guarantor of this publication is Chiara Zuiani.

Statistics and biometry

No complex statistical methods were necessary for this paper.

Informed consent

Written informed consent was waived by the Institutional Review Board.

Ethical approval

Institutional Review Board approval was obtained with waiver of patient informed consent.

Methodology

This is a retrospective, observational study, performed at one institution.

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Copyright information

© Italian Society of Medical Radiology 2018

Authors and Affiliations

  1. 1.Department of Medical Area, Institute of Diagnostic RadiologyUniversity of Udine, Azienda Ospedaliero-UniversitariaUdineItaly

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