title: Abdominal mass in a newborn: multicystic dysplasia of crossed fused renal ectopia--ultrasonic demonstration.
abstract: We report on a 6-week-old white male newborn with an asymptomatic abdominal mass. Excretory urography and ultrasound had complementary roles in establishing the correct preoperative diagnosis of crossed fused renal ectopia with multicystic dysplasia of the ectopic renal unit.
mesh_terms: D006801:Humans; D007223:Infant; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D007690:Polycystic Kidney Diseases / Q000175:diagnosis*; D011860:Radiography, Abdominal; D014463:Ultrasonography; D014567:Urography