Medulloblastoma in a child with fragile X syndrome
George A Alexiou1, George Siozos, Kalliopi Stefanaki
1Department of Neurosurgery, Children's Hospital Agia Sofia, Athens, Greece. alexiougrg@yahoo.gr
Insights
Fragile X syndrome, a common cause of intellectual disability, is linked to lower cancer rates. This report details the first known case of medulloblastoma in a child with Fragile X syndrome.
Area of Science:
- Neuroscience
- Oncology
- Genetics
Background:
- Fragile X syndrome (FXS) is the leading inherited cause of intellectual disability.
- FXS is paradoxically associated with a reduced incidence of various cancers.
- The interplay between FXS genetics and cancer risk remains incompletely understood.
Observation:
- An 11-year-old boy with diagnosed FXS presented with neurological symptoms: gait imbalance, headache, and vomiting.
- Radiological imaging identified a tumor in the posterior fossa.
- Surgical resection confirmed the tumor as medulloblastoma (MB).
Findings:
- This case represents the first documented instance of medulloblastoma (MB) occurring in a pediatric patient with Fragile X syndrome.
- The co-occurrence challenges the previously observed trend of decreased cancer incidence in FXS.
Implications:
- This unique case prompts further investigation into potential biological mechanisms linking FXS and specific tumor types like MB.
- Understanding this association may offer new insights into cancer development and prevention strategies for individuals with FXS.
- Further research is warranted to explore the oncological implications and potential genetic or molecular pathways involved.
Abstract:
Fragile X syndrome is the most common cause of inherited intellectual impairment and has been associated with decreased incidence of cancer. We present the case of an 11-year-old boy with a diagnosis of fragile X syndrome who presented with gait imbalance, headache, and episodes of vomiting. Radiological investigation revealed the presence of a posterior fossa tumor. The patient was operated upon and the tumor proved to be a medulloblastoma (MB). To the best of our knowledge this is the first reported case of MB in a child with fragile X syndrome.
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