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目的:探讨乳腺浸润性小叶癌超声声像图特点,提高超声诊断水平。方法:回顾分析53例经病理证实乳腺浸润性小叶癌超声图像资料。结果:单纯性小叶癌38例,混合性小叶癌15例。肿瘤大小6～50mm,有多种超声表现:形态不规则(66%)、分叶状(19%)或规则(15%);边界清晰(74%)或模糊(26%);均为低回声;内部回声可不均匀(81%)或均匀(19%);内见钙化点(45%)及后方回声衰减(55%);肿瘤内见彩色血流(96%),血流阻力指数0.57～1.0。腋窝淋巴结转移34例,转移淋巴结大小5～33mm,62%超声表现为低回声,38%呈中央高周围低不均质回声。91%超声诊断为恶性肿瘤。超声诊断腋窝淋巴结转移的敏感性85%。结论:乳腺浸润性小叶癌有多种超声表现,超声检查是较好的影像学诊断方法,但对腋窝淋巴结转移的准确诊断有待进一步提高。
Objective: To investigate the characteristics of ultrasonography of breast infiltrating lobular carcinoma and improve the diagnostic value of ultrasound. Methods: A retrospective analysis of 53 cases of pathologically confirmed breast infiltrating lobular carcinoma ultrasound image data. Results: Simple lobular carcinoma in 38 cases, mixed lobular carcinoma in 15 cases. Tumor sizes ranged from 6 to 50 mm with various sonographic findings: irregular (66%), lobulated (19%) or regular (15%); border clear (74%) or blurred (26%); (81%) or uniform internal echo (19%); internal calcification (45%) and posterior echo attenuation (55%); intracranial color flow (96%), blood flow resistance index 0.57 ~ 1.0. 34 cases of axillary lymph node metastasis, metastatic lymph node size of 5 ~ 33mm, 62% ultrasound showed hypoechoic, 38% Central high around the low heterogeneous echo. 91% of the ultrasound diagnosis of malignant tumors. Sensitivity of sonographic diagnosis of axillary lymph node metastasis 85%. CONCLUSIONS: Breast infiltrating lobular carcinoma has many kinds of ultrasonographic findings. Ultrasonography is a good imaging diagnosis method, but accurate diagnosis of axillary lymph node metastasis needs to be further improved.