The impact of anatomical variations and renal malformations on the flow of urine through the megaureters and the occurrence of renal failure

Abstract

Unilateral renal agenesis is a congenital malformation characterized by the complete absence of one kidney. Megaureters, on the other hand, are urinary tract anomalies characterized by abnormal dilation of the ureters, resulting in obstruction of urine flow. This case study aims to analyze the impact of unilateral renal agenesis on the development of megaureters and the obstruction of urine flow through the ureter. Follow-up of a patient from fetal age to five years of age highlights the correlation between unilateral renal agenesis and the accelerated development of obstructive megaureters. The results showed that the absence of a functional kidney was associated with the presence of voluminous megaureters, leading to obstruction of urine flow. This study highlights the importance of understanding the underlying mechanisms of these malformations and developing optimal management strategies to prevent renal failure in patients with unilateral renal agenesis and obstructive megaureters.