Abuhamad A Z, Horton C E, Horton S H, Evans A T
Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk 23507, USA.
Ultrasound Obstet Gynecol. 1996 Mar;7(3):174-7. doi: 10.1046/j.1469-0705.1996.07030174.x.
Duplex kidneys are one of the most common major congenital abnormalities of the urinary tract. The antenatal diagnosis of duplex kidney and its associated ureterocele is infrequent. We report on our experience with the prenatal diagnosis of duplex kidneys in seven fetuses over the past 24 months. In all fetuses, the sagittal length of the duplex kidney was above the 95th centile for gestational age. A 'cyst-like' structure in the upper pole of the duplex kidney and a ureterocele in the urinary bladder were present in all of the seven fetuses. An ipsilateral dilated ureter was seen in six of seven fetuses. Postnatal confirmation of renal duplication anomalies was obtained in all neonates. Increased familiarity of the prenatal sonographer with duplex kidney will allow for its antenatal diagnosis and thus early postnatal treatment.
重复肾是最常见的泌尿系统主要先天性异常之一。产前诊断重复肾及其相关的输尿管囊肿并不常见。我们报告过去24个月中7例胎儿重复肾产前诊断的经验。所有胎儿中，重复肾的矢状径长度均高于相应孕周的第95百分位数。7例胎儿均在重复肾的上极出现“囊肿样”结构，且膀胱内均有输尿管囊肿。7例胎儿中有6例可见同侧输尿管扩张。所有新生儿出生后均证实存在肾重复畸形。产前超声检查人员对重复肾的熟悉程度提高，将有助于进行产前诊断，从而实现出生后早期治疗。
