肾上腺节细胞神经瘤彩色多普勒超声及超声造影表现

摘要

目的 探讨肾上腺节细胞神经瘤的彩色多普勒超声及超声造影征象,提高术前诊断准确性.方法 回顾性分析经病理证实的24例肾上腺节细胞神经瘤的彩色多普勒超声及超声造影表现.结果 24例肾上腺节细胞神经瘤均行彩色多普勒超声检查,大多表现为体积较大、边界清晰、类圆形或椭圆形、低回声、回声分布较均匀的肿块,4例呈长条形,1例有囊性变,50％可见点状钙化,彩色多普勒多不能探及血流信号.9例进行了超声造影,注入超声造影剂后,4例病灶基本无灌注,5例有造影剂灌注(4例呈弱灌注,1例中等灌注),造影剂到达时间为16～25S.结论 肾上腺节细胞神经瘤的彩色多普勒超声表现特异性不高,超声造影可为其与肾上腺侵袭性病变的鉴别提供一定信息.%Objective To explore the imaging features of adrenal ganglioneuromas by Doppler ultrasonography (CDUS) and contrast-enhanced ultrasonography(CEUS) ,so that to improve its diagnostic accuracy. Methods 24 patients with histopathologiacally proven adrenal ganglioneuromas were included. The CDUS and CEUS imaging features of adrenal ganglioneuromas were retrospectively analyzed. Results All the 24 patients were examined by CDUS. Most of the adrenal ganglioneuromas appeared as defined, round or oval, homogeneous echogenicity, hypoechoic, large-volume mass. Four tumors were strip-like in shape. Cystic changes were showed in one patient. 50% cases were with calcification. No blood flow signal was found in 22 cases. Nine cases had CEUS. Four masses exhibited no recordable contrast enhancement. Four cases presented hypoechoginicity relative to surrounding live or spleen parenchvma and one case presented isoechoginicity relative to surrounding live or spleen parenchvma. The ultrasonic contrst showed impr-tus time of accentuation 16 - 25 s. Conclusions Ultrasonography is limited useful in characterization of adrenal gangli-oneuroma. CEUS Can show blood supply information of adrenal tumor and provide important supplements to the differential diagnosis of adrenal benign and malignant lesions.