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Accidental finding of fused crossed renal ectopia with single ureter in an adult patient. A case report
Accidental finding of fused crossed renal ectopia with single ureter in an adult patient. A case report
Fiorella P. Sánchez-Guanilo 1 
, Ronald L. Retuerto-Marticorena 2 , Liz Aranda-Ávila 3
1 1Servicio de Urología, Hospital Regional Hermilio Valdizán Medrano de Huánuco, Huánuco, Perú; 2 Servicio de Urología, Hospital Regional Hermilio Valdizán Medrano de Huánuco, Huánuco, Perú; 3 Servicio de Radiologia. Hospital Regional Hermilio Valdizán Medrano de Huánuco, Huánuco, Perú
*Correspondence: Fiorella P. Sánchez-Guanilo. Email: pafisanchez@gmail.com
Abstract
Introduction: Congenital renal anomalies account for approximately 30% of all prenatal malformations. Among these, crossed fused renal ectopia is a rare condition, representing the second most common fusion anomaly after horseshoe kidney. It exhibits a male predominance and is more frequently observed with left-to-right fusion.
Clinical case: We report the case of a 28-year-old male with no significant medical history who presented to the emergency department following blunt trauma to the right flank and hypogastric region. He developed sudden-onset abdominal pain accompanied by hematuria. Initial ultrasound revealed the absence of kidneys in their typical anatomical locations. Subsequent computed tomography confirmed the presence of a crossed fused renal ectopia with a single functioning ureter.
Conclusion: Fused crossed renal ectopia is a rare anomaly, often asymptomatic, its complications can become a challenge for the urologist.
Keywords: Fused kidney. Inferior fusion. Left to right ectopia.
