45岁以上女性乳腺纤维腺瘤的超声诊断

Ultrasonography in Breast Fibroadenoma of the Women Older than 45 Years

目的 提高对 45岁以上女性乳腺纤维腺瘤的认识。方法 回顾性分析 5 0例经手术及病理证实的乳腺纤维腺瘤的超声表现。结果 肿物均为低回声 ,回声均匀 3 2例 ,不均匀 18例 ,后方回声增强 2 8例 ;3例肿物内有粗大钙化伴声影 ;肿物边界清晰 3 8例 ,模糊 12例 ;椭圆形 2 8例 ,分叶状 2 2例 ,11例有侧方声影。CDFI :2 7例肿物内部或周边可见动脉或静脉血流频谱 ,其中血流丰富 8例 ,RI变化范围 0 .45～ 0 .89。结论 45岁以上中老年女性乳腺纤维腺瘤大多具有典型纤维腺瘤声像图表现。少数超声表现不典型 ,根据肿物后方回声及肿物内钙化特点有助于诊断。

Objective To enrich our knowledge of breast fibroadenoma in the women older than 45 years. Methods We retrospectively studied the data of ultrasonography in 50 cases of breast fibroadenoma, which were confirmed by pathology of surgery. Results All the lesions appeared hypoechoic. Among these lesions, homogeneous echo were found in 32 cases, intensive rear echo in 28 cases, coarse calcification with shadow in 3 cases, distinct boundary in 38 cases, elliptical shape in 28 cases, lobulated in 22 cases, lateral shadow in 11 cases. Artery or vein color Doppler signals in inner or rounder of the tumor were detected in 27 cases, among which abundant flow signal were detected in 8 cases. Resistence index(RI) were from 0.45 to 0.89. Conclusion The breast fibroadenoma in patients older than 45 years has specific appearances on sonography and can accurately be diagnosed in most patients. Acoustic shadow and internal calcification is helpful in identifiacation of breast fibroadenoma.