Ureter anomalies

Given orally to pregnant rats at doses ranging from 5 to 50mg/kg body weight/day, purified pentachlorophenol produced dose-related signs of fetotoxicity, including resorptions, subcutaneous edema, dilated ureters, and anomalies of the skull, ribs, and vertebrae. "... 

Some authors described major anomalies of urinary organs in a high percentage of otherwise healthy children from affected households. "Foetal" and abnormal glomeruli were also observed among these children. Unfortunately no explanation exists for how severe anomalies, notably renal agenesis or double ureters, might disappear in adult life. 

Developmental anomalies of the ovaries are very rare. Although ovaries have a different developmental origin from uterus and fallopian tubes, ovarian anomalies are significantly more often associated with congenital uterine anomalies (22%), particularly with unicornuate uterus [16]. Uterus and fallopian tubes develop from the paramesonephric ducts. Defects of the paramesonephric tubes result not only in abnormalities of the uterus but also of tbe fallopian tubes, kidneys, and ureters. 

Anomalies of the Pelvis and Ureter in Single and Bifid Collecting Systems 91... 

Fig. 5.5. MR imaging of bilateral infundibulo-pelvic stenosis. T2-weighted sequence. The anomaly is associated with a right megaureter and with a segmental ureteral cystic dilatation to the left ureter...

Yagci F, Erbagci A, Sarica K et al (1999) The place of diuretic enhanced Doppler US in distinguishing between obstructive and nonobstructive hydronephrosis in children. Scand J Urol Nephrol 33 382-385 Young DW, Lebowitz RL (1986) Congenital anomalies of the ureter. Semin Roentgen 21 172-187... 

Other etiologies for urinary tract dilatation include duplex kidneys complicated by a dilatation of the upper or the lower pole (Abuhamad et al. 1996 Vergani et al. 1999). Such anomalies can be associated with an ectopic extravesical ureter (Fig. 13.12) or an ectopic ureterocele (Fig. 13.13), which can be demonstrated in utero. 

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