Bilateral Peters' anomaly, aniridia and Wilms tumour (WAGR syndrome) in monozygotic twins

Sebastião Cronemberger, Anna L.B. Albuquerque, Ana Cristina Simões e. Silva, Jovita Lane Soares Santos Zanini, Alexandre Higino Gonçalves da Silva, Luciana F. Barbosa, Francine da Cunha Rubião, Felipe L. de Lima, Rossana Fonseca Casimiro, Márcio Placedino Martins, Alberto Diniz-Filho, Luciana Bastos-Rodrigues, Eitan Friedman, Luiz De Marco*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Aim: This study reports the bilateral association of Peters' anomaly and congenital aniridia in monozygotic twins subsequently diagnosed with Wilms tumour (WAGR syndrome). Methods: Two monozygotic female twins were referred at age 2 months with bilateral corneal opacity. A diagnosis of Peters' anomaly associated to aniridia was made in both eyes of both twins. Physical examination and ultrasonography were carried out at 12 months of age to explore the possibility of WAGR-related anomalies, specifically Wilms tumour. DNA were isolated and subjected to whole exome sequencing. Results: Peters' anomaly associated to aniridia in both eyes as well as bilateral Wilms tumour in both children were diagnosed. Exome analyses showed a large heterozygous deletion encompassing 6 648 473 bp in chromosome 11p13, using Integrative Genomics Viewer and AnnotSV software. Conclusion: WAGR syndrome is a rare contiguous gene deletion syndrome with a greater risk of developing Wilms tumour associated with Peters' anomaly and congenital aniridia. However, co-occurrence of both anomalies was rarely reported in twins, and never in both eyes of monozygotic twins. Here, we report the bilateral association of Peters' anomaly and congenital aniridia in monozygotic twins with WAGR syndrome.

Original languageEnglish
Pages (from-to)1420-1425
Number of pages6
JournalActa Paediatrica, International Journal of Paediatrics
Volume113
Issue number6
DOIs
StatePublished - Jun 2024

Funding

FundersFunder number
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Conselho Nacional de Desenvolvimento Científico e Tecnológico405053/2013–4
Fundação de Amparo à Pesquisa do Estado de Minas GeraisCDS‐RED‐00019‐16

    Keywords

    • Peters' anomaly
    • WAGR syndrome
    • Wilms' tumour
    • aniridia
    • monozygotic twins

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