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Wilms' tumor in seven children with congenital aniridia
Insights
Congenital aniridia, a rare genetic condition, is linked to a significant risk of developing Wilms' tumor, particularly in sporadic cases. Early evaluation protocols are crucial for affected children.
Area of Science:
- Ophthalmology
- Pediatric Oncology
- Genetics
Background:
- Congenital aniridia is a rare genetic disorder affecting eye development.
- It is associated with an increased risk of certain cancers, notably Wilms' tumor.
Purpose of the Study:
- To review the clinical experience with congenital aniridia in pediatric patients.
- To determine the incidence of Wilms' tumor in patients with sporadic versus familial aniridia.
- To propose a protocol for evaluating these patients.
Main Methods:
- Retrospective review of 26 pediatric patients with congenital aniridia.
- Analysis of tumor development in relation to aniridia inheritance patterns (sporadic vs. familial).
- Literature review and synthesis of existing data.
Main Results:
- Seven out of 20 patients with sporadic aniridia developed unilateral Wilms' tumor.
- None of the six patients with familial aniridia developed Wilms' tumor.
- Combined data from this study and Fraumeni (1969) show a 34% incidence of Wilms' tumor in sporadic congenital aniridia.
Conclusions:
- Sporadic congenital aniridia carries a substantial risk of Wilms' tumor development.
- Familial aniridia appears to have a lower or no associated risk of Wilms' tumor.
- A standardized evaluation protocol is recommended for early detection and management.
Abstract:
This report reviews our experience with 26 infants and children who demonstrate the syndrome of congenital aniridia. Twenty patients exhibited congenital sporadic aniridia, and unilateral Wilms' tumor has developed in seven of them. Six of the total of 26 patients had familial aniridia and none has shown evidence of the development of a Wilms' tumor or any other malignant tumor to date. Fraumeni studied 15 patients with congenital sporadic aniridia. Five developed Wilms' tumors. In the combined series of 35 patients with congenital sporadic aniridia, 12 patients have developed Wilms' tumor for an incidence of 34%. A brief review of our experience and a suggested protocol for the evaluation of patients with congenital aniridia is presented.