ABSTRACT
Objective To evaluate the clinical value of ultrasound breast imaging reporting and data system (BI‐RADS) in small solid breast masses with diameter ≤1 cm. Methods The ultrasound features of 230 solid breast masses with diameter ≤ 1 cm were described by ultrasound BI‐RADS, the relationship between ultrasound features, BI‐RADS final assesment and pathology were analyzed. Results Of these 230 masses, 72 (31 3.% ) were pathologically confirmed to be malignant and 158 (68 7.% ) to be benign. The ultrasound BI‐RADS features of mass shape, margin, orientation, posterior acoustic features, and microcalcificaition were significantly different between malignant and benign masses( P < 0.05). Irregular shape, noncircumscribed, nonparallel orientation, postrior shadowing, microcalcifications were regarded as malignant ultrasound features, their positive predictive values(PPV), sensitivity, specificity and accuracy for malignancy were 53 3.% -100%, 2 8.% -75 0.%, 82 3.% -100%, 69 6.% -80 9.%, respectively. One hundred and fifty‐two(66.1% ), 62(27 0.% ), 16(7 0.% ) masses were classified into grade 3, 4, and 5, respectively. The PPV for grade 3, 4 and 5 were 10 5.%, 64 5.%, 100% respectively. Among BI‐RADS grade 3 cases, 87 5.%malignant masses were intraductal carcinoma in situ and special type of invasive cancer, among pathological benign BI‐RADS grade 4 masses, 90 9.% were hyperplasia and intraductal papilloma. Conclusions In small breast masses with diameter ≤ 1 cm, due to the sensitivity of malignant signs are not high, the overlap between signs of benign and malignant lesions, pathological type and other factors, the positive predictive value of BI‐RADS grade 3 is higher than criteria of American College of Radiology, so BI‐RADS classification requires further detailed study.
ABSTRACT
Objective:To explore the clinical value of stereotactic wire-localized biopsy(SWLB)in digital mammography in the detection of microcalcification of the breast.Methods:A total of 45 patients with nonpalpable breast lesions which were positive for microcalcification by mammography but could not be detected clinically underwent SWLB.Their mammography fndings were analyzed in detail with pathology.Results:Among the 45 cases,13 cases(28.9%)had malignant lesions including ductal carcinoma in situ in 3 cases (20.1%),ductal carcinoma in situ with microinvasion in 4 cases(30.8%),invasive ductal carcinoma in 5 cases (38.5%)and intraductal papillary carcinoma in 1 case(7.7%).Thirty-two cases(71.1%)had benign lesions,2 cases(6.3%)of which were severe atypical hyperplasia.Conclusion:SWLB can accurately guide the surgical excision of nonpalpable breast microcalcification lesions and diagnose microcalcifications exactly,which is helpful for increasing the detection rate of eady-stage breast cancer.