Drevna David W, Dankoff Joseph, Van Leeuwen Bryant
Cleveland Clinic Akron General Urology Residency Program Akron, OH.
Rev Urol. 2018;20(1):49-51. doi: 10.3909/riu0770.
Cross-fused renal ectopia (CFRE) is a rare congenital anomaly in which both kidneys are located on a unilateral side of the retroperitoneal space. The ureter of the ectopic kidney is seen to pass over the midline to insert in its normal anatomic position. Frequently this anomaly goes undetected until there is radiologic screening for other purposes or when other genitourinary issues are investigated. Although frequently isolated, this condition has been reported to be associated with other congenital anomalies, genetic disorders, and various urogenital anomalies more than 50% of the time. However, we found no cases linking CFRE with a solitary testicle. This is a case of a 30-year-old man with left-to-right CFRE with concomitant absent left testicle and obstructing distal calculus.
交叉融合型肾异位（CFRE）是一种罕见的先天性异常，其中双肾均位于腹膜后间隙的单侧。异位肾的输尿管越过中线，插入其正常解剖位置。这种异常通常在因其他目的进行影像学筛查或调查其他泌尿生殖系统问题时才被发现。尽管这种情况常为孤立性，但据报道，超过50%的时间里它与其他先天性异常、遗传疾病及各种泌尿生殖系统异常有关。然而，我们未发现CFRE与单侧睾丸相关的病例。这是一例30岁男性患者，患有从左至右的CFRE，同时左侧睾丸缺如并伴有远端结石梗阻。
