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Pseudotumor cerebri in kaposiform lymphangiomatosis: a case report and pathogenetic hypothesis
Cristina Barceló-López1, Antonio L López-Guerrero1, Antonio García-López1
1Regional Service of Neurosurgery, Virgen de la Arrixaca University Hospital, 30120, Murcia, Spain.
Insights
A child with kaposiform lymphangiomatosis (KLA) developed pseudotumor cerebri, a rare condition. A ventriculoperitoneal shunt improved the patient, suggesting a link between KLA and increased intracranial pressure.
Area of Science:
- Neurology
- Pediatrics
- Vascular Malformations
Background:
- Kaposiform lymphangiomatosis (KLA) is a rare vascular tumor.
- Pseudotumor cerebri (PTC) involves increased intracranial pressure.
- The association between KLA and PTC is not well-established.
Observation:
- A 4-year-old boy with KLA presented with headaches and papilledema.
- Initial treatment with acetazolamide was ineffective.
- Clinical deterioration necessitated a ventriculoperitoneal shunt.
Findings:
- Neuroimaging ruled out cranial or meningeal KLA infiltration.
- The patient's PTC was likely caused by thoracic venous compression due to KLA.
- This case represents the first reported instance of PTC in a patient with KLA.
Implications:
- This case highlights a potential, previously unrecognized complication of KLA.
- It suggests a possible mechanism linking KLA to elevated intracranial venous pressure.
- Further research is warranted to explore this association and its management.
Case Report:
A 4-year-old boy with kaposiform lymphangiomatosis (KLA) developed progressive headaches and papilloedema and was diagnosed with pseudotumor cerebri initially treated with acetazolamide. Clinical deterioration prompted placement of a ventriculoperitoneal shunt. After the surgery, the child's condition has markedly improved.
Discussion And Conclusions:
A network of intracranial lymphatics is presently being investigated. Neuroimaging excluded KLA infiltration of the skull and/or meninges, leaving as the most plausible explanation for the child's pseudotumor cerebri the existence of an increase in intracranial venous pressure by venous compression at the thorax. To our knowledge, our case constitutes the first report of pseudotumor cerebri occurring in the context of KLA.
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