Breast Imaging Reporting and Data System Category 3 Lesions Detected on Whole-Breast Screening Ultrasound / 한국유방암학회지
Journal of Breast Cancer
;
: 301-307, 2016.
Article
in English
| WPRIM
| ID: wpr-126239
ABSTRACT
PURPOSE:
This study assessed the incidence and cancer rate of probably benign lesions detected on bilateral whole-breast screening ultrasound (US), which corresponded to US Breast Imaging Reporting and Data System (BI-RADS) category 3, and evaluated the proper management of those lesions.METHODS:
This study was approved by the Institutional Review Board in our institution, which waived informed patient consent. We retrospectively reviewed US images of 1,666 patients who underwent bilateral whole-breast screening US as a supplemental screening test to negative screening mammography or screening US only. The incidence, clinical course, and cancer rate of screening US-detected probably benign lesions corresponding to US BI-RADS category 3 were investigated, and the size and multiplicity of screening US-detected category 3 lesions were evaluated.RESULTS:
Probably benign lesions corresponding to US BI-RADS category 3 were detected in 689 of 1,666 patients (41.4%) who underwent screening US. Among them, 653 had follow-up US images for at least 24 months, and among these 653, 190 (29.1%) had multiple bilateral category 3 lesions. Moreover, 539 of 1,666 patients (32.4%) had lesions ≤1 cm in size and 114 of 1,666 (6.8%) had lesions >1 cm (median, 0.82 cm; range, 0.3–4.2 cm). Four of the 653 patients (0.6%) showed suspicious interval changes and were categorized into BI-RADS category 4. Biopsy analysis confirmed only one lesion as invasive ductal carcinoma at the 6-month follow-up; another lesion was an intraductal papilloma and the remaining two were fibroadenomas. Overall cancer rate of the screening US-detected BI-RADS category 3 lesions was 0.2%.CONCLUSION:
The incidence of category 3 lesions detected on screening US only was very high, but the cancer rate was very low. Therefore, in an average-risk population, routine screening US is preferable over short-term follow-up for BI-RADS category 3 lesions detected on whole-breast screening US.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Biopsy
/
Breast
/
Information Systems
/
Mammography
/
Mass Screening
/
Incidence
/
Retrospective Studies
/
Follow-Up Studies
/
Ultrasonography
/
Papilloma, Intraductal
Type of study:
Diagnostic study
/
Incidence study
/
Observational study
/
Prognostic study
/
Risk factors
/
Screening study
Limits:
Humans
Language:
English
Journal:
Journal of Breast Cancer
Year:
2016
Type:
Article
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