Renal Cell Carcinoma in a Patient With Crossed Renal Ectopia: A Case Report

Crossed fused renal ectopia (CFRE) is a rare congenital anomaly in which a kidney is located on the opposite side from where its ureter connects to the bladder, merging into the other kidney. It has been linked to other rare congenital malformations, including the VACTERL association (vertebral anom...

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Bibliographic Details
Published in:Curēus (Palo Alto, CA) CA), 2024-05, Vol.16 (5), p.e60789
Main Authors: Kaça do Carmo, Leticia Helena, Giuliani Schmitt, Luiza, de Paula Uchôa, Francisco Ewerton, Piovesan Wiethan, Camila, Brondani Torri, Giovanni
Format: Article
Language:English
Subjects:
Abdomen
Case reports
Coronary vessels
Hydronephrosis
Kidney cancer
Lymphatic system
Morphology
Oncology
Patients
Radiology
Urology
Veins & arteries
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Summary:Crossed fused renal ectopia (CFRE) is a rare congenital anomaly in which a kidney is located on the opposite side from where its ureter connects to the bladder, merging into the other kidney. It has been linked to other rare congenital malformations, including the VACTERL association (vertebral anomalies, anal atresia, cardiac anomalies, tracheoesophageal fistula, esophageal atresia, renal anomalies, and limb abnormalities), the MURCS association (müllerian ducts, renal, and cervicothoracic spine anomalies), increased incidence of infections, obstruction, cystic dysplasia, and urolithiasis. Although the literature has documented only a small number of cases wherein CFRE coincides with neoplasia, we present the case of a 59-year-old patient with a right ectopic kidney fused to the left one and simultaneous primary renal cell carcinoma. We aim to report and discuss this case and the treatment approach, comparing it with existing literature to enhance our understanding and management of similar occurrences, as partial nephrectomy is uncommon due to the challenging anatomy of these cases.
ISSN:2168-8184
2168-8184
DOI:10.7759/cureus.60789