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Non-mass lesions on screening breast ultrasound

Authors
 Jihyun Lee  ;  Jin Hwa Lee  ;  Seonmi Baik  ;  Eun Cho  ;  Dong won Kim  ;  Hee Jin Kwon  ;  Eun-Kyung Kim 
Citation
 MEDICAL ULTRASONOGRAPHY, Vol.18(4) : 446-451, 2016 
Journal Title
MEDICAL ULTRASONOGRAPHY
ISSN
 1844-4172 
Issue Date
2016
Keywords
breast ; ultrasound ; cancer screening ; non-mass lesion
Abstract
AIM: The purpose of this study was to determine the significance of a non-mass lesion (NML) which is recognized during screening breast ultrasound (US).

MATERIALS AND METHODS: We included patients with a NML on screening breast US and no suspicious finding on mammography between March 2008 and June 2012. The final diagnoses were based on pathology results and a clinical or sonographic follow-up for more than 12 months. We calculated the incidence, likelihood of malignancy, and positive predictive value (PPV) of biopsy with a review of imaging and histopathological findings.

RESULTS: A total of 17868 screening breast US were performed in 8856 asymptomatic patients. Ninety-five NMLs were detected in 88 patients (1.0%). Among the 93 lesions that were followed or confirmed histopathologically, 2 (2.2%) were malignant, 89 (95.6%) were benign, and 2 (2.2%) were high risk lesions. The likelihood of malignancy in a NML on screening breast US was 2.2% and the PPV of biopsy was 6.3% (2 of 32).

CONCLUSION: The likelihood of malignancy for a NML on screening breast US was greater than 2%. It could be classified as a BI-RADS category 4a lesion and tissue diagnosis is warranted. This provides the potential management guidelines for a NML in screening patients and further prospective studies in a large, multicenter screening population are required.
Files in This Item:
T201605281.pdf Download
DOI
10.11152/mu-871
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Eun-Kyung(김은경) ORCID logo https://orcid.org/0000-0002-3368-5013
Cho, Eun(조은)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/152754
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