单纯型和混合型乳腺黏液腺癌的超声特征分析

目的 分析单纯型乳腺黏液腺癌（pure mucinous breast carcinoma,PMBC）和混合型乳腺黏液腺癌（mixed mucinous breast carcinoma,MMBC）的二维超声和彩色多普勒血流显像特征。方法 回顾性分析2013年1月至2020年12月于我院就诊且经手术病理证实的49例乳腺黏液腺癌（mucinous breast carcinoma,MBC）患者的二维超声、彩色多普勒血流显像表现，比较PMBC和MMBC患者在形态、边缘、内部回声、后方回声、钙化、血流分级和BI-RADS分类等方面的差异。结果 49例MBC病灶中，BI-RADS 3类1例，BI-RADS 4a类4例，BI-RADS 4b类15例，BI-RADS 4c类11例，BI-RADS 5类18例。PMBC组肿块呈混合回声的显示率高于MMBC组（P=0.025）;MMBC组肿块后方回声衰减及边缘毛刺、模糊的显示率高于PMBC组（P=0.008,0.023）;MMBC组血流3级肿块和BI-RADS 5类肿块占比均高于PMBC组；BI-RADS 4b类肿块占比低于PMBC组。结论 PMBC较...

Analysis of ultrasonic features of pure and mixed mucinous breast carcinoma

 Objective To analyze the two-dimensional ultrasound (2DUS) and color Doppler flow imaging (CDFI) characteristics of pure mucinous breast carcinoma (PMBC) and mixed mucinous breast carcinoma (MMBC). Methods The 2DUS and CDFI images of 49 patients with mucinous breast carcinoma (MBC), who were diagnosed by surgical pathology in the First Affiliated Hospital of Guangxi Medical University from January 2013 to December 2020, were retrospectively analyzed. The ultrasonic differences between PMBC and MMBC in shape, margin, echo pattern, posterior acoustic feature, calcification, blood flow grade and BI-RADS category were compared. Results Among 49 cases of MBC lesions, there were 1 case of BI-RADS category 3, 4 cases of BI-RADS category 4a, 15 cases of BI-RADS category 4b, 11 cases of BI-RADS category 4c, and 18 cases of BI-RADS category 5. The detection rate of heterogeneously mixed echoes in the PMBC group was higher than that in MMBC group (P=0.025). The detection rates of posterior echo attenuation and spiculated indistinct margin in MMBC group were higher than those in the PMBC group (P=0.008, 0.023); The proportions of blood flow grade 3 masses and BI-RADS class 5 masses in the MMBC group were higher than those in the PMBC group; the proportion of BI-RADS class 4b masses was lower than that in the PMBC group. Conclusions Compared with MMBC, PMBC is more easily benign ultrasound features. Comprehensive analysis of the margin, echo pattern, posterior features and CDFI findings can help to distinguish PMBC from MMBC, thereby improving the ultrasound diagnostic accuracy of MBC.