Journal of Pediatric Urology
Volume 3, Issue 6 , Pages 466-468 , December 2007

The bear paw: A radiologic sign for congenital ureteropelvic junction obstruction

  • Ryan P. Terlecki

      Affiliations

    • Wayne State University, Department of Urology, 4160 John R. Street, Suite 1017, Detroit, MI 48201, USA
    • Corresponding Author InformationCorresponding author. Tel.: +1 2485578644; fax: +1 3137450464.
    • ,
  • Gordon A. McLorie

      Affiliations

    • Wake Forest University Baptist Medical Center, Department of Urology, Medical Center Boulevard, Winston-Salem, NC 27157, USA

Received 21 April 2007 ,Accepted 15 May 2007.

References 

  1. Kirsch AJ, Grattan-Smith JD, Molitierno JA. The role of magnetic resonance imaging in pediatric urology. Curr Opin Urol. 2006;16:283–290
  2. Wille S, von Knobloch R, Klose KJ, Heidenreich A, Hofmann R. Magnetic resonance urography in pediatric urology. Scand J Urol Nephrol. 2003;37:16–21
  3. Shalaby-Rana E, Lowe LH, Blask AN, Majd M. Imaging in pediatric urology. Pediatr Clin North Am. 1997;44:1065–1089
  4. Hafez AT, McLorie G, Bagli D, Khoury A. Analysis of trends on serial ultrasound for high grade neonatal hydronephrosis. J Urol. 2002;168:1518–1521
  5. Fernbach SK, Maizels M, Conway JJ. Ultrasound grading of hydronephrosis: introduction to the system used by the Society for Fetal Urology. Pediatr Radiol. 1993;23:478–480
  6. Dhillon HK. Prenatally diagnosed hydronephrosis: the Great Ormond Street experience. Br J Urol. 1998;81(Suppl. 2):39–44
  7. Chertin B, Pollack A, Koulikov D, Rabinowitz R, Hain D, Hadas-Halpren I, et al. Conservative treatment of ureteropelvic junction obstruction in children with antenatal diagnosis of hydronephrosis: lessons learned after 16 years of follow-up. Eur Urol. 2006;49:734–738[discussion 9]
  8. Konda R, Sakai K, Ota S, Abe Y, Hatakeyama T, Orikasa S. Ultrasound grade of hydronephrosis and severity of renal cortical damage on 99m technetium dimercaptosuccinic acid renal scan in infants with unilateral hydronephrosis during followup and after pyeloplasty. J Urol. 2002;167:2159–2163
  9. Chertin B, Rolle U, Farkas A, Puri P. Does delaying pyeloplasty affect renal function in children with a prenatal diagnosis of pelvi-ureteric junction obstruction?. BJU Int. 2002;90:72–75
  10. Chavhan GB. The cobra head sign. Radiology. 2002;225:781–782
  11. Callahan MJ. The drooping lily sign. Radiology. 2001;219:226–228
  12. Dyer RB, Chen MY, Zagoria RJ. Classic signs in uroradiology. Radiographics. 2004 Oct;24(Suppl. 1):S247–S280

PII: S1477-5131(07)00340-3

doi: 10.1016/j.jpurol.2007.05.004

Journal of Pediatric Urology
Volume 3, Issue 6 , Pages 466-468 , December 2007

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