卵巢卵泡膜纤维瘤的常规超声及超声造影表现

Ovarian Fibrothecomas:Imaging Features in Conventional Ultrasound and Contrast-enhanced Ultrasound

目的探讨卵巢卵泡膜纤维瘤的常规超声及超声造影表现。方法分析14例经手术病理证实的卵巢卵泡膜纤维瘤的常规超声表现,对其中6例的超声造影表现进行探讨。结果 14例卵巢卵泡膜纤维瘤均表现为低回声(10例后方回声增强和4例后方回声衰减),实性13例,囊实性1例,3例伴发腹水,14例内部血流信号均不丰富。6例造影病例主要表现为晚增强及不均匀低增强,2例造影病例行MR检查均误诊为畸胎瘤。结论卵泡膜纤维瘤有其特征性的常规超声和超声造影表现,超声造影能更准确反映肿瘤组织学特征及微循环灌注情况。

Objective To observe the imaging features of ovarian fibrothecoma with conventional ultrasound and contrast-enhanced ultrasound（CEUS） . Methods 14 patients of ovarian fibrothecoma confirmed with pathology underwent US examination,and 6 cases of them underwent CEUS. Results For the ultrasonic features,14 cases presented hypoechoic pattern（10 cases showed posterior echoic enhancement,4 cases had the posterior echoic attenuated）;13 cases were solid masses,1 case was mixed（cystic-solid） type with capsule formation;ascites was present in 3 cases. Color Doppler showed hypovascularity of the masses. The enhancement pattern of 6 cases was slowly wash-in and irregularly hypo echoic in early-phase. 2 cases were misdiagnosed as teratoma by MRI. Conclusion Ovarian fibrotheoma has characteristic conventional ultrasound and CEUS features,CEUS can show histological pattern and microcircumfusion of the neoplasm.