Overview
Crossed renal ectopia is an embryological anomaly characterized by one kidney crossing over to the opposite side of the body, often associated with abnormal vasculature and urinary drainage. This condition can present as a solitary kidney draining abnormally and is frequently accompanied by other congenital anomalies, particularly in genitourinary and skeletal systems 12.Diagnosis
Key Diagnostic Criteria: Solitary kidney with crossed anatomical location and abnormal vascular supply.
Recommended Tests: Multidetector computed tomographic (MDCT) angiography to visualize renal position, vasculature, and urinary drainage 1.
Associated Findings: Review for associated congenital anomalies, especially genitourinary and skeletal system abnormalities 2.Management
First-Line Treatment: Symptomatic management; address any associated pathologies such as urinary tract infections or stones.
Adjunctive Measures: Imaging follow-up to monitor for complications related to abnormal vasculature and urinary tract function 1.Special Populations
Pediatrics: Increased likelihood of associated congenital anomalies; regular monitoring essential 2.
Comorbidities: No specific management adjustments noted; focus on managing associated anomalies 2.Key Recommendations
Utilize MDCT angiography for definitive diagnosis and assessment of vascular anomalies in suspected cases (Evidence: Moderate 1).
Regular clinical and imaging follow-up is recommended to monitor for complications and associated congenital anomalies, particularly in pediatric patients (Evidence: Weak 2).
Symptomatic treatment should be tailored to address specific complications arising from the anatomical abnormality (Evidence: Expert opinion 12).References
1 Miclaus GD, Pupca G, Gabriel A, Matusz P, Loukas M. Right lump kidney with varied vasculature and urinary system revealed by multidetector computed tomographic (MDCT) angiography. Surgical and radiologic anatomy : SRA 2015. link
2 Gu LL, Alton DJ. Crossed solitary renal ectopia. Urology 1991. link80179-b)