title: Association of preauricular sinuses and renal anomalies.
abstract: Renal ultrasonography was performed on 69 children who had a preauricular sinus. Three children (4.3%) were found to have a significant renal anomaly. Two children had hydronephrosis secondary to vesicoureteric reflux. One patient with branchio-oto-renal syndrome had an absent left kidney and a hypoplastic right kidney associated with two dysplastic arteries. Renal anomalies were significantly more common in patients with a preauricular sinus than the 1 percent incidence of renal anomalies reported in the general population. We recommend that renal ultrasonography be performed on all children with a preauricular sinus.
authors.affiliation: Department of Pediatrics, Alberta Children's Hospital, University of Calgary, Canada.
authors.forename: A K
authors.initials: AK
authors.lastname: Leung
authors.forename: W L
authors.initials: WL
authors.lastname: Robson
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D004431:Ear, External / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007223:Infant; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D014463:Ultrasonography