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Neuroblastoma with intracranial involvement: an ENSG Study
1Department of Paediatric Haematology, Royal Hospital for Sick Children, Edinburgh, Scotland.
Medical and Pediatric Oncology
|January 1, 1992
Summary
Central nervous system (CNS) involvement in neuroblastoma occurred in 5% of intensively treated patients, with posterior fossa and isolated CNS metastases being notable observations. Early CT scans are recommended only upon symptom onset, not routinely at diagnosis.
Area of Science:
- Neuro-oncology
- Pediatric oncology
- Medical imaging
Background:
- The European Neuroblastoma Study Group (ENSG) investigated central nervous system (CNS) involvement in neuroblastoma.
- Diagnosis of CNS neuroblastoma in this cohort relied on computed tomography (CT) scanning, not autopsy.
Observation:
- Cranial neuroblastoma affected 5% of ENSG patients.
- Intracranial disease presented in 11 patients, with 4 cases involving the posterior fossa, a previously underreported site.
- Five patients exhibited isolated CNS metastases without evidence of systemic disease, suggesting primary CNS spread.
Findings:
- Arterial spread patterns were consistent with observed parenchymal CNS disease.
- Computed tomography (CT) is the optimal imaging modality for detecting CNS neuroblastoma.
- Two patients had normal head CT scans before developing symptomatic CNS disease.
Implications:
- Routine head CT scans at diagnosis are not indicated for neuroblastoma patients.
- Head CT should be performed promptly upon the appearance of symptoms or signs suggestive of CNS involvement.
- Increased patient survival necessitates ongoing vigilance for CNS disease during long-term follow-up.