Non-mass-like breast lesions at ultrasonography: Feature analysis and BI-RADS assessment

被引:83
作者
Ko, Kai-Hsiung [1 ]
Hsu, Hsian-He [1 ]
Yu, Jyh-Cherng [2 ]
Peng, Yi-Jen [3 ]
Tung, Ho-Jui [4 ]
Chu, Chi-Ming [5 ]
Chang, Tsun-Hou [1 ]
Chang, Wei-Chou [1 ]
Wu, Yu-Cheng [1 ]
Lin, Yu-Pang [1 ]
Hsu, Giu-Cheng [1 ]
机构
[1] Triserv Gen Hosp, Dept Radiol, Natl Def Med Ctr, Taipei 114, Taiwan
[2] Triserv Gen Hosp, Div Gen Surg, Natl Def Med Ctr, Dept Surg, Taipei 114, Taiwan
[3] Triserv Gen Hosp, Dept Pathol, Natl Def Med Ctr, Taipei 114, Taiwan
[4] Asia Univ, Dept Healthcare Adm, Taichung, Taiwan
[5] Natl Def Med Ctr & Univ, Inst Publ Hlth, Sect Hlth Informat, Taipei, Taiwan
关键词
Non-mass-like Breast carcinoma; Breast ultrasound; Breast sonography; BI-RADS; CARCINOMA IN-SITU; PATHOLOGICAL FINDINGS; US; ULTRASOUND; BIOPSY; MICROCALCIFICATIONS; MAMMOGRAPHY; DIAGNOSIS; CANCER; COST;
D O I
10.1016/j.ejrad.2014.10.010
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Objective: To analyze the features of non-mass-like (NML) breast lesions on ultrasound (US) and determine their corresponding malignancy rate and to stratify these lesion patterns according to US BI-RADS categories. Materials and methods: One hundred sixty-four consecutive lesions were retrospectively classified into four types according to the US features, the corresponding positive predictive values (PPVs) were obtained. Clinical, imaging, and histopathological findings were reviewed. Results: Among the 164 lesions, 39 (24%) were classified as type Ia, 14 (8%) as type Ib, 39 (24%) as type IIa, 19(12%) as type IIb, 19(12%) as type III, and 34(21%) as type IV. The PPVs for malignancy were 21% for type Ia, 79% for type Ib, 10% for type Ha, 58% for type lIb, 16% for type III, and 21% for type IV. All NML lesions were classified as BI-RADS category 4a (type IIa), 4b (type Ia, III and IV) and 4c (type Ib and IIb) according to their PPVs. There was a significantly higher frequency of malignancy among lesions of type Ib and type IIb compared with the other types (P < 0.01 for each). Lesions with associated calcifications, presence of abnormal axillary nodes, or a mammographic finding of suspected malignancy had a higher probability of malignancy (P < 0.05 for each). Conclusion: US is useful in clarifying the indication for biopsy of NML lesions. The types of US classifications used in our study establish reliable references for the NML patterns when stratified according to the BI-RADS categories. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:77 / 85
页数:9
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