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What to Do With Renal Cysts in Children?
  • Zhan Tao Peter Wang, Western University
  • Ernest Pang Chan, Western University
  • Nicolas Vanin Moreno, Western University
  • Guido Filler, Western University
  • Irene McAleer, University of California, Orange CA
  • Elias Wehbi, University of California, Orange CA
  • Kai-Wen Chuang, University of California, Orange CA
  • Antoine Khoury, University of California, Orange CA
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OBJECTIVE: To explore the current practice patterns for the management of renal cysts internationally among pediatric urologists and nephrologists.

MATERIALS AND METHODS: A survey composed of 21 questions and 4 clinical scenarios was distributed to pediatric urologists and nephrologists. Survey questions evaluated optimal imaging modality, management, and follow-up period. Interspecialty comparisons were made using chi-square analysis where appropriate.

RESULTS: A total of 183 respondents completed the survey (128 pediatric urologists, 37 pediatric nephrologists, and 19 other specialists). Most (57%) respondents agreed or strongly agreed with using an ultrasound based Bosniak classification to categorize renal cysts in children. The most commonly used follow-up intervals were 6-12 months for pediatric urologists and 1-2 years for pediatric nephrologists. Symptomatic mass effect (80.9%), gross hematuria (79.2%), or family history were the most common reasons for escalating surveillance. Pediatric nephrologists were more likely to increase follow-up with development of bilateral simple renal cysts (P = .008) or chronic kidney disease (P = .027) when compared to pediatric urologists. Laparoscopic marsupialization (39.4%) was the most common treatment for a simple renal cyst in a symptomatic child. Modified Bosniak III cysts had more heterogeneity in treatment based on the physician responses.

CONCLUSION: There is currently no consensus on the optimal protocol for the surveillance, imaging, or treatment of renal cysts in children. Most respondents agree that using an ultrasound-based Bosniak classification is reasonable. A call to action is therefore necessary for the development of registries and guidelines on the management of pediatric renal cysts and their associated malignancies.


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Citation Information
Zhan Tao Peter Wang, Ernest Pang Chan, Nicolas Vanin Moreno, Guido Filler, et al.. "What to Do With Renal Cysts in Children?" Urology Vol. 140 (2020) p. 138 - 142
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