彩超对乳腺良、恶性肿瘤的鉴别诊断

目的：探讨彩超诊断乳腺良恶性肿块的声像图特征及其诊断价值。材料与方法：对经病理证实的乳腺良性肿块35例和恶性肿块18例的高频彩超声像图进行回顾性分析。结果：本组大多数恶性肿块形态不规则，边界不清，内部回声不均，以低回声为主，部分后方回声衰减，肿块纵横比≥1。彩色多普勒血流分级大多为Ⅱ-Ⅲ级；PI〉1．2，RI〉0．7。6例（33．3％）同侧腋窝淋巴结肿大，血流丰富。乳腺良性肿块大多形态规则，边缘光整，内部回声均匀，侧缘回声减弱，纵横比〈1；彩色多普勒血流分级大多为0-Ⅰ级；PI〈1．2，RI〈0．7。结论：高频彩超对乳腺肿块的检出率高，对乳腺良恶性肿瘤的鉴别诊断具有很高的临床应用价值。

Color Doppler ultrasound of the Breast in the Differential Diagnosis of Benign and Malignant Tumor

Purpose： To study the ultrasonic features and diagnostic value of breast tumors. Materials and Methods： 35 eases with breast benigh tumors and 18 eases with breast malignant tumors identified with pathology were analyzed, retrospectively. Results： Most of malignant tumors in our cases were with irregular shapes, indistinct border, irregular inside echoes and length/width ≥ 1. Doppler flow imaging grades were Ⅱ - Ⅲ, PI 〉 1.2 and RI 〉0. 7. The ipsolateral axillary lymph nodes in 6 eases were enlarged. Most of benigh tumors appeared as regular shape, smooth edges, homogeneous internal echoes, no rear attenuation and length/width 〈 1. Doppler flow imaging grades were 0 - Ⅰ . PI 〈 1.2 and RI 〈 0. 7. Conclusion： The high frenquency ultrasonography and color Doppler flow imaging possess clinical practical value to get a high accurate diagnostic rate of breast neoplasms.