摘要
目的探讨小儿肾母细胞瘤(Wilms′tumor,WT)的超声图象特征,以提高其超声诊断水平。方法回顾分析30例经手术病理证实的WT的超声表现特点。结果29例肿瘤均表现为中低不均混合回声,其中22例瘤内可见大小及数量不等的囊腔,7例肿瘤完全为实性,内无明显囊腔。另1例为巨大多房分隔囊性包块。4例肿瘤侵入肾盂肾盏,1例见右肾静脉瘤栓。1例肾门淋巴结转移,1例并双肺转移。26例肿瘤较大,超出肾轮廓,3例表现为患肾形态大致正常,肿瘤占据肾窦区域,使肾内结构紊乱。1例肿瘤位于肾外腹膜后。结论典型的WT超声表现为肿瘤巨大超越肾轮廓,呈中低不均混合回声,内可见大小及数量不等的囊腔,亦可完全为实性,还可为纯囊性(较少见)。此外还可见患肾形态大致正常的WT,肿瘤限于肾轮廓之内,此型易与肾癌混淆。肿瘤可位于双侧,或位于肾外。WT、肾透明细胞肉瘤、恶性杆状细胞瘤、先天性中胚叶肾瘤四者超声特点酷似,鉴别困难。
Objective To study the ultrasonographic characteristics of Wilms′tumor (WT), aims at elevating the diagnostic level.Methods We retrospectively studied sonographic features in 30 cases of WT proved by operation and pathology.Results The tumors with heterogeneous pattern of solid and cystic tissue were shown in 22 cases.Seven cases demonstrate predominantly echogenic tumor. A huge cystic mass with numerous septas was shown in 1 case. The tumor extended into renal pelvis in 4, into renal vine in 1.The tumor metastasized to lymphnod in 1, to bilateral lungs in 1. Among 30 cases, the tumor was huge and grew beyond the renal profile in 26 cases, in 3 cases the tumors took up the renal sinus and made its structure turbulence, the renal shape was approximately normal.One case was extrarenal WT,the tumor located in retroperitonemu.Conclusions Sonographically, typical WT is a large heterogeneous mass within or without cystic areas, it also can be a pure cyst. It is easy to diagnose. When the tumor is limited to renal outline, it is easy to confusion with renal cancer. In addition, there are bilateral WT and extrarenal WT. The sonographic characteristics is similar among WT, clear cell sarcoma of kidney, malignant rhabdoid tumor and congenital mesoblastic nephroma. It is difficult to distinguish them from ultrasonography.
出处
《实用儿科临床杂志》
CAS
CSCD
北大核心
2005年第7期661-663,i004,共4页
Journal of Applied Clinical Pediatrics
关键词
肾脏肿瘤
肾母细胞瘤
超声
kidney neoplasm
Wilms′ tumor
ultrasonography
