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Related Experiment Videos

Renal dysplasia and duplex kidneys.

P C Gartell, A G MacIver, J D Atwell

    European Urology
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Urinary obstruction in developing kidneys can cause renal dysplasia, a condition affecting both upper and lower kidney poles. This study examined children with congenital urinary tract abnormalities, finding obstruction is a key factor in dysplasia development.

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    Area of Science:

    • Pediatric Urology
    • Developmental Biology
    • Nephrology

    Background:

    • Congenital anomalies of the kidney and urinary tract (CAKUT) are common in children.
    • Renal dysplasia, a malformation of the kidney, can result from various factors including urinary obstruction.
    • Understanding the etiology of renal dysplasia is crucial for pediatric kidney health.

    Purpose of the Study:

    • To investigate the role of urinary obstruction in the development of renal dysplasia in children.
    • To analyze the distribution and severity of renal dysplasia in relation to specific ureteral anomalies.
    • To correlate histological findings with clinical presentation in pediatric kidney malformations.

    Main Methods:

    • Retrospective analysis of 34 children undergoing heminephrectomy for congenital ureteral anomalies.

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  • Categorization of anomalies including double ureters, bifid ureters, and bifid renal pelvis.
  • Histopathological examination of resected kidney tissue to assess renal dysplasia in upper and lower poles.

    • Main Results:

    • Renal dysplasia was observed in both upper and lower pole lesions, with generally less severe changes in the lower pole.
    • Patients with ectopic ureteroceles/ureters predominantly showed upper pole lesions (18/18).
    • Lower pole involvement was more frequent in patients with vesico-ureteric reflux (9/11).

    Conclusions:

    • Prolonged urinary obstruction is a significant factor in the pathogenesis of renal dysplasia in developing kidneys.
    • The location and type of ureteral anomaly may influence the pole predominantly affected by dysplasia.
    • Histological evidence suggests a link between obstruction severity and dysplasia grade.