CASE REPORT Percutaneous retrieval of coiled double-J stent from renal pelvis after AndersoneHynes pyeloplasty: Report of two cases Anupam Lal a, *, Manphool Singhal a , Kannan Laxmi Narasimhan b , Jai K. Mahajan b , Jitendra Kumar Singh b , Babita Ghai c , Niranjan Khandelwal a a Department of Radio-diagnosis, Postgraduate Institute of Medical Education and Research, Chandigarh 16001, India b Department of Paediatric Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh 16001, India c Department of Anaesthesia, Postgraduate Institute of Medical Education and Research, Chandigarh 16001, India Received 2 January 2012; accepted 12 January 2012 Available online 7 February 2012 KEYWORDS Double J ureteral stents; Percutaneous nephrostomy; Semirigid bronchoscopic forceps Abstract Double-J (DJ) ureteral stents are routinely placed for internal urinary diversion post renal pyeloplasty. Malfunction of the stent may occur due to migration, necessitating removal. Upward migration of a DJ stent is rarely encountered in urologic practice when a ureteroscope is used to retrieve the stent. However, retrieval of upwardly migrated stents through uretero- scopy may be challenging in the pediatric population, especially in postoperative cases. We report two pediatric cases of post AndersoneHynes pyeloplasty in whom the DJ stents were found coiled up in the renal pelvis and were retrieved successfully through percutaneous ne- phrostomy using semirigid bronchoscopic forceps. ª 2012 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved. Introduction Double-J ureteral stents are routinely placed for internal urinary diversion after AndersoneHynes pyeloplasty. In the rarest of situations, the stent may migrate proximally into the renal pelvis where cystoscopic retrieval may not be possible. In such cases ureteroscopy has to be used; however, in smaller children due to lack of a smaller sized uretero-renoscope this route of retrieval may not always be feasible. In addition, ureteroscopic retrieval may be challenging in postoperative cases due to altered anatomy or fibrosis leading to decreased compliance of the ureter. We report two pediatric postoperative cases of Ander- soneHynes pyeloplasty in whom DJ stents were successfully * Corresponding author. E-mail address: dralal@rediffmail.com (A. Lal). 1477-5131/$36 ª 2012 Journal of Pediatric Urology Company. Published by Elsevier Ltd. All rights reserved. doi:10.1016/j.jpurol.2012.01.008 Journal of Pediatric Urology (2012) 8, e19ee22