Association of preauricular sinuses and renal anomalies

Urology. 1992 Sep;40(3):259-61. doi: 10.1016/0090-4295(92)90487-h.


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.

MeSH terms

  • Abnormalities, Multiple* / diagnostic imaging
  • Child
  • Child, Preschool
  • Ear, External / abnormalities*
  • Ear, External / diagnostic imaging
  • Female
  • Humans
  • Infant
  • Kidney / abnormalities*
  • Kidney / diagnostic imaging
  • Male
  • Ultrasonography