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目的探讨小乳癌的二维超声特征性表现及彩色多普勒血流特征,以期提高小乳癌的诊断水平。方法对65个小乳腺肿瘤(≤1.5cm)进行二维及彩色多普勒超声检查,观察肿瘤的形态、边缘、内部回声及血流状况,将术前诊断与术后病理对照。结果肿瘤的形态、高回声晕、包膜及微小钙化在良、恶性乳腺肿瘤之间的差异有统计学意义,以形态不规则、微小钙化及高回声晕诊断小乳癌敏感性分别为80.7%、34.6%、46.1%,特异性分别为79.5%、97.4%、97.4%。结论肿瘤形态不规则、内部微小钙化及肿瘤边缘高回声晕是诊断小乳癌的可靠方法。
Objective To investigate the characteristic manifestation of two-dimensional ultrasonography and color Doppler flow characteristics of small breast cancer in order to improve the diagnosis of small breast cancer. Methods Sixty-five small breast tumors (≤1.5cm) were examined by two-dimensional and color Doppler ultrasonography. Morphology, margins, internal echo and blood flow were observed. Preoperative diagnosis and postoperative pathology were compared. Results The tumor morphology, hyperechoic edema, capsule and microcalcifications were significantly different between benign and malignant breast tumors. The sensitivity of diagnosing small breast cancer with irregular shape, microcalcifications and hyperchoic halo were 80.7% 34.6% and 46.1% respectively, and the specificity was 79.5%, 97.4% and 97.4% respectively. Conclusion The irregular shape of the tumor, internal micro-calcification and tumor hyperechoic edge is a reliable method for the diagnosis of small breast cancer.