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Updated: Aug 18, 2026
Isolation, Enrichment, and Maintenance of Medulloblastoma Stem Cells
Published on: September 1, 2010
Insights
This study on medulloblastoma in children found that total tumor resection significantly improves survival rates. Females also showed better survival outcomes than males in this pediatric cancer cohort.
Area of Science:
- Pediatric Oncology
- Neurosurgery
- Radiation Oncology
Background:
- Medulloblastoma is a common malignant brain tumor in children.
- Hydrocephalus is a frequent complication requiring intervention.
- Treatment strategies have evolved over the past decade.
Purpose of the Study:
- To analyze treatment outcomes for pediatric medulloblastoma.
- To evaluate the impact of surgical resection extent on survival.
- To identify prognostic factors in medulloblastoma patients.
Main Methods:
- Retrospective analysis of 51 pediatric medulloblastoma cases treated over 11 years.
- Surgical interventions included ventriculo-peritoneal shunt, posterior fossa craniotomy with varying resection degrees (total, subtotal, partial/biopsy).
- Post-surgical radiotherapy was administered to all patients.
Main Results:
- Overall three-year survival was 45.6%, and five-year survival was 34.5%.
- Total tumor resection correlated with significantly longer survival.
- Female patients demonstrated better survival rates compared to males.
Conclusions:
- Total resection is a critical factor for improved medulloblastoma survival in children.
- Gender is a significant prognostic indicator, with females faring better.
- Management of recurrent or metastatic medulloblastoma warrants radiotherapy and/or chemotherapy.
Abstract:
Fifty-one patients with medulloblastoma have been treated at the Children's Memorial Hospital during the past 11 years. The ratio between males and females was 2:1. The ages ranged from 4 months to 12 years; 7 patients were less than 12 months old at the time of diagnosis. After 1969, prior to definitive surgery, all patients were given a ventriculo-peritoneal shunt to decompress the hydrocephalus which was invariably present. There were no cases of systemic metastasis related to these shunts. Subsequently, posterior fossa craniotomy was performed, with total or radical resection of tumour in 13 cases, subtotal resection in 20 cases, and partial resection or biopsy in 14 cases. After completion of surgical treatment and radiotherapy, the three-year survival rate was 45.6 per cent and the five-year survival 34.5 per cent. The survival of children given total resection of the tumour was significantly longer, and females survived longer than males. Local recurrence and spinal cord or systemic metastases are discussed. Reexploration of the posterior fossa for recurrences failed to improve the prognosis. Recurrent or metastatic medulloblastoma should be treated by radiotherapy or chemotherapy, or both.
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