关键词: 微浸润, 超声, 乳腺X线摄影, 导管原位癌

Abstract:

Objective To compare the sonographic and mammographic features in patients with ductal carcinoma in situ（DCIS）and DCIS with microinvasion（DCISM）. Methods A total of 147 women （94 DCIS and 53 DCISM） were retrospectively included. The sonographic lesions were classified as either masses or non-mass abnormalities. The lesions on mammography were classified as calcifications only, mass, asymmetry or architectural distortion. Statistical comparisons were made using Mann?Whitney U test, χ2 test, Fisher′s exact test and multiple logistic regression analysis. Results Univariate and multivariate analyses showed that the presence of microcalcifications and vascularity on sonography were associated with DCISM（P=0.038, P=0.025）. Moreover, a greater range of calcification distribution were associated with a higher likelihood of DCISM（P=0.002）. Conclusion The presence of microcal-cifications and vascularity on sonography or a great range of microcalcification distribution on mammo-graphy may suggest DCISM.

Key words: sonography, breast ductal carcinoma in situ, mammography, microinvasion