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Catastrophic intracerebral hemorrhage in a young infant with Wilms tumor
Ronald van Toorn1, Glynn Wessels, Christina Stefan
1Department of Pediatrics and Child Health, Faculty of Health Sciences, Stellenbosch University and Tygerberg Children's hospital, Tygerberg, South Africa. vtoorn@sun.ac.za
Insights
A Wilms tumor patient died from brain hemorrhage, possibly due to a rare co-occurring vascular malformation. This highlights the need for thorough infant evaluations for congenital anomalies.
Area of Science:
- Pediatric Oncology
- Neurology
- Pathology
Background:
- Wilms tumor is a common pediatric kidney cancer.
- Infants diagnosed with Wilms tumor have a higher risk of congenital anomalies.
Observation:
- A 7-month-old infant with stage I Wilms tumor died from intracerebral hemorrhage post-treatment.
- The hemorrhage etiology was unclear, but a cerebral vascular malformation is suspected.
- Cerebral vascular anomalies are rare but reported in Wilms tumor patients.
Findings:
- The co-occurrence of Wilms tumor and cerebral vascular malformations may stem from shared congenital origins.
- Infants diagnosed with Wilms tumor, especially under one year, exhibit distinct features and higher anomaly risks.
Implications:
- Consider routine MRI in infants under one year with Wilms tumor to screen for cerebral metastases and vascular malformations.
- Early detection of co-existing conditions can potentially improve outcomes in pediatric cancer patients.
Abstract:
We present a 7-month-old male infant with stage I Wilms tumor who unexpectedly died from a catastrophic intracerebral hemorrhage, 4 months after completion of chemotherapy and complete surgical resection of the tumor. The precise etiology underlying the fatal event remains unclear as postmortem was refused, but we postulate spontaneous hemorrhage from an underlying cerebral vascular malformation as the most likely cause, which led to the child's unfortunate demise. Although extremely rare, cerebral vascular anomalies have previously been reported in children with Wilms tumor. The coexistence of the 2 uncommon disorders may be related to their congenital origin. Wilms tumor diagnosed in very young infants have clinical and morphologic attributes that do not pertain in older children and the risk of associated congenital anomalies is also much higher among those discovered in the first year of life. This raises the question whether routine magnetic resonance imaging should not be performed in infants less than a year with Wilms tumor, as part of the initial evaluation, to exclude cerebral metastases and underlying vascular malformations.
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