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| Malignancy Rates of Suspicious Breast Lesions in Patients on
Annual Screening or Regular Follow-up Ultrasonography |
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| Hera Kang, MD, Sung Hun Kim, MD, Bong Joo Kang, MD, Byung Gil Choi, MD |
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| Department of Radiology, Seoul St. Mary’s Hospital, The Catholic University of Korea |
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| Purpose: The objective of this study is to investigate the malignancy rates of BIRADS
4 and 5 lesions detected on annual screening or follow-up US and to correlate
the malignancy rates with the rationales for biopsy.
Materials and Methods: Between 2010 and 2011, among 2837 patients who
underwent US-guided core-needle biopsy, 423 patients underwent screening or regular
follow-up US examinations. Lesions were classified into four groups: newly detected
suspicious lesions, benign lesions with interval growth, benign lesions with suspicious
changes of US features and benign lesions with interval growth and suspicious
changes of US features.
Results: The malignancy rates were as follows: BI-RADS 4A low suspicion of
malignancy, 8.1% (31/379); 4B intermediate suspicion of malignancy, 56% (14/25);
4C moderate suspicion of malignancy, 71.4% (10/14); 5 highly suggestive of malignancy,
100% (5/5). The malignancy rates for the four groups were as follows: newly
detected suspicious lesions, 17.46% (51/292); benign lesions with interval growth,
7.77% (7/90); benign lesions with suspicious changes of US features, 4% (1/25);
benign lesions with interval growth and suspicious changes of US features, 6.25%
(1/16). Comparison of the malignancy rate of newly detected suspicious lesions with
that of benign lesions with interval growth revealed a statistically significant difference
(p=0.038). No significant differences were observed between the other groups
(p>0.05).
Conclusions: The malignancy rates of suspicious lesions detected on annual
screening or follow-up US were similar to those of the reported BI-RADS data. A higher
malignancy rate was observed for newly detected suspicious lesions than for
lesions with interval growth. |
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| Keyword : Breast Diseases; Ultrasonography; Mass screening; Follow-up Studies;Biopsy, Large-Core Needle. |
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pdf파일 : 182-188강혜라.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2013 ; 32 (3) : p.182-192
