[Inborn hip ectopy of one flat kidney].

Congenital hip ectopy of one flat kidney is an excessively seldom developmental anomaly considering abnormal shape and ectopy with agenesia of one kidney. However, in literature, the kidney malformations are described very well, especially the ectopy of one of the kidneys and two-sided agenesia, but the presented case is exceptionally seldom anomaly. That is why it should be shown in the context of other defects of urinary tract. Abnormalities of urinary tract are the most often congenital defects among children. For example, two-sided agenesia occurs in 1, per 4800 live born children, while one-sided at 1:2500 to 1:2800. This defect occurs more often among boys 1.8:1 and on the left side 1.5:1. The tendency of family heredity was also noticed. Structural changes of right-sided ureteric bud accompany the defect very often. Usually it is an asymptomatic defect but in 50% girls and 10%-15% boys, other congenital defects occur together with this one. The lack of homonymous suprarenal gland, spermatic cord seminal vesicles and right testicle in boys is the most often accompanying anomaly. Organogenesis disorders connected with organs developing from Muller's tract are seen in girls.