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Case Reports
. 2024 Jun;113(6):1420-1425.
doi: 10.1111/apa.17160. Epub 2024 Feb 16.

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

Sebastião Cronemberger  1 , Anna L B Albuquerque  2 , Ana Cristina Simões E Silva  3 , Jovita Lane Soares Santos Zanini  4 , Alexandre Higino Gonçalves da Silva  1 , Luciana F Barbosa  1 , Francine da Cunha Rubião  1 , Felipe L de Lima  1 , Rossana Fonseca Casimiro  1 , Márcio Placedino Martins  1 , Alberto Diniz-Filho  1 , Luciana Bastos-Rodrigues  5 , Eitan Friedman  6 , Luiz De Marco  2
Affiliations
Case Reports

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

Sebastião Cronemberger et al. Acta Paediatr. 2024 Jun.

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.

Keywords: Peters' anomaly; WAGR syndrome; Wilms' tumour; aniridia; monozygotic twins.

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