ReviewChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2025
Meningeal melanocytoma of the central nervous system in children.
Review in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis study aimed to summarize the existing English-language literature on central nervous system (CNS) meningeal melanocytomas in children, and additionally describe our institutional case report.
methodsPubMed database was screened on September 2, 2024, for English-language papers reporting on pediatric patients with CNS meningeal melanocytoma.
resultsA total of 17 papers reporting on 18 patients with 19 CNS meningeal melanocytomas were found in the literature. Additionally, we reported on a 15-year-old male patient with C2-C6 meningeal melanocytoma. Pediatric cohort analysis showed nearly equal sex distribution and a mean age at diagnosis of 11.9 years. There were fifteen intracranial (75%) and five spinal tumors (25%). Four lesions (20%) were diagnosed as intermediate-grade melanocytomas, while the remaining sixteen (80%) were benign meningeal melanocytomas. Most tumors were hyperintense on T1-weighted imaging (85%) and hypointense on T2-weighted imaging (73%). All tumors showed positivity for S100 and Melan-A. Most tumors were characterized by a lack of CNS invasion (91%). Gross-total resection (GTR) was performed in 61% of tumors. Adjuvant radiotherapy (RT) was applied in 50% of patients with incomplete tumor resection. Postoperatively, 62% of patients achieved a favorable outcome. We found 1, 2, 3, and 4-year overall survival of 80%, 71%, 71%, and 50%, respectively. The recurrence rate was 15% after a mean time of 10 months.
conclusionsMeningeal melanocytomas constitute a rare subgroup of CNS tumors. Surgical tumor removal aiming at maximally safe GTR remains a standard approach, resulting in favorable postoperative outcomes. Considering high recurrence rate, long-term follow-up is needed.
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