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Multiple bladder diverticula with Williams-Beuren syndrome: a case report
Jing Chen1, Jianhua Mao2, Lezhen Ye1
1Department of Nephrology, Ningbo Women and Children's Hospital, Ningbo, China.
Insights
Williams-Beuren syndrome (WBS) can manifest with bladder issues like nocturnal enuresis. This case highlights bladder diverticula as a key sign of WBS in children.
Area of Science:
- Genetics
- Pediatrics
- Urology
Background:
- Williams-Beuren syndrome (WBS) is a genetic disorder characterized by developmental delay, cardiovascular anomalies, and distinct facial features.
- Lower urinary tract symptoms (LUTS) are increasingly recognized in WBS patients.
- Non-monosymptomatic nocturnal enuresis is a rare primary presentation of WBS.
Observation:
- A 7.6-year-old girl presented with chronic frequent urination, urgency, and nocturnal enuresis.
- Urinary ultrasound revealed multiple bladder diverticula as a significant finding.
- Genetic testing confirmed a 7q11.23 deletion, indicative of WBS.
Findings:
- The patient's primary symptoms of LUTS were directly linked to multiple bladder diverticula.
- The 7q11.23 deletion, encompassing the elastin gene, confirmed the diagnosis of Williams-Beuren syndrome.
- This case underscores the potential for bladder diverticula to be a primary manifestation of WBS.
Implications:
- Multiple bladder diverticula can significantly contribute to LUTS in WBS patients.
- Effective treatment strategies for LUTS in WBS patients with bladder diverticula are currently limited.
- LUTS should be considered a crucial diagnostic indicator for WBS, impacting patient quality of life.
Abstract:
Williams-Beuren syndrome (WBS) is an autosomal dominant disorder caused by a gene deletion on chromosome 7q11.23. Patients with WBS usually show a group of features such as developmental delay, cardiovascular anomalies, mental retardation, and characteristic facial appearance. It occurs in 1:7,500 live births and affects males and females equally. Recent studies showed that lower urinary tract symptoms were also frequent in WBS patients. However, there is extremely rare study report non-monosymptomatic nocturnal enuresis as the main manifestation of Williams syndrome in children. We reported a child with non-monosymptomatic nocturnal enuresis and multiple bladder diverticula as the main implications of Williams syndrome. A 7.6-year-old girl was admitted to our hospital due to frequent micturition, urgency, and nocturnal enuresis for 4 years, and B ultrasound of urinary system revealed multiple bladder diverticula. The patient was found to have 7q11.23 deletion that involves the elastin gene for WBS. Multiple bladder diverticula in WBS patients can lead to many lower urinary tract symptoms. The treatment for the lower urinary tract symptoms in WBS patients with multiple bladder diverticula is lacking. Lower urinary tract symptoms should be considered as a significant indicator of the clinical diagnosis of WBS and have a significant negative impact on patient's quality of life.
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