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ORIGINAL RESEARCH article

Front. Pediatr.

Sec. Children and Health

Volume 13 - 2025 | doi: 10.3389/fped.2025.1690760

This article is part of the Research TopicPrenatal Environmental and Genetic Interactions: An Exploration from Fetal Development to Child HealthView all 14 articles

Beckwith-Wiedemann syndrome with reduced H19 expression: a case report

Provisionally accepted
Meng  WangMeng Wang*Jiegang  DengJiegang DengShuhua  XingShuhua XingXuening  NiuXuening Niu
  • Tianjin Children's Hospital, Tianjin, China

The final, formatted version of the article will be published soon.

Background Beckwith-Wiedemann syndrome (BWS) is a congenital imprinting disorder characterized by features such as macrosomia, umbilical hernia, macroglossia and increased tumor susceptibility. DNA methylation changes at 11p15.5 are the primary molecular mechanisms. This report presents a case of BWS with gain of methylation at imprinting control region 1 (IC1) and reduced H19 expression, along with typical clinical features and recurrent atrial tachycardia. Case presentation A 2-month-old female infant presented with macroglossia, umbilical hernia, organomegaly, and arrhythmia. She had a history of fetal macrosomia and polyhydramnios. Echocardiography revealed patent ductus arteriosus, and electrocardiogram confirmed atrial tachycardia. MLPA testing showed normal copy number at 11p15.5 but gain of methylation at IC1, confirming the diagnosis of BWS. Tongue reduction surgery with ablation was performed at 12 months due to feeding and speech difficulties. Follow-up at 18–20 months showed no evidence of tumor development, improved pronunciation, and recurrence of atrial tachycardia without myocardial hypertrophy. Conclusion This case underscores the diagnostic value of methylation testing in BWS, especially when copy number is normal. Infants with macrosomia, macroglossia, and umbilical hernia should be evaluated for BWS. Long-term multidisciplinary follow-up, including tumor surveillance and cardiac monitoring, is essential to improve prognosis and quality of life.

Keywords: Beckwith-Wiedemann Syndrome, umbilical hernia, atrial tachycardia, imprinting control region 1 hypermethylation, Tumor surveillance

Received: 22 Aug 2025; Accepted: 13 Oct 2025.

Copyright: © 2025 Wang, Deng, Xing and Niu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Meng Wang, 13920573368@163.com

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