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Localized cystic disease of the kidney in pediatric patients: Clinical and imaging findings with long term follow up

Authors
 Haesung Yoon  ;  Myung-Joon Kim  ;  Hyun Joo Shin  ;  Mi-Jung Lee 
Citation
 JOURNAL OF PEDIATRIC UROLOGY, Vol.18(1) : 90.e1-90.e8, 2022-02 
Journal Title
JOURNAL OF PEDIATRIC UROLOGY
ISSN
 1477-5131 
Issue Date
2022-02
MeSH
Child ; Female ; Follow-Up Studies ; Humans ; Kidney / diagnostic imaging ; Kidney / pathology ; Kidney / physiology ; Kidney Diseases, Cystic* / diagnostic imaging ; Kidney Neoplasms* / pathology ; Male ; Retrospective Studies ; Ultrasonography
Keywords
Children ; Localized cystic disease of the kidney ; Ultrasonography
Abstract
Introduction: This study aimed to describe the clinical and imaging findings, including ultrasonography (US) findings, and long-term follow-up results in pediatric patients with localized cystic disease of the kidney (LCDK).

Material and methods: Retrospective review of pediatric patients diagnosed with LCDK based on imaging findings showing multiple localized renal cysts with intervening normal renal parenchyma from January 2002 to August 2020. Clinical presentations and US features of the affected and contralateral kidneys were reviewed and compared with computed tomography or magnetic resonance imaging findings, if available.

Results: A total of 18 patients (male:female = 11:7; median age, 8 years) were included. Initial clinical presentations were incidental findings (n = 5), abdominal pain (n = 5), or hematuria (n = 5). Of the seven patients (7/18, 39%) who showed multiple hyperechoic foci with ring-down artifacts within the cystic lesions on US, six patients showed focal calcification of the cysts on CT. Two patients (2/18, 11%) had milimetric cysts in the contralateral kidney. During follow-up (range, 2-122 months), there was an increase in lesion size, with ipsilateral renal growth in four patients (4/18, 22%). There was no renal function impairment at the initial presentation or during follow-up in all patients.

Conclusions: LCDK can present with milimetric calcifications (39%), contralateral milimetric renal cysts (11%), and mild size increase during renal growth (22%) in children without renal function impairment. Follow-up US is recommended without surgical intervention in these typical cases.
Full Text
https://www.sciencedirect.com/science/article/pii/S1477513121005258
DOI
10.1016/j.jpurol.2021.11.002
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Shin, Hyun Joo(신현주) ORCID logo https://orcid.org/0000-0002-7462-2609
Yoon, Haesung(윤혜성) ORCID logo https://orcid.org/0000-0003-0581-8656
Lee, Mi-Jung(이미정) ORCID logo https://orcid.org/0000-0003-3244-9171
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/193491
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