Age at treatment and long-term performance results in medulloblastoma

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Abstract
Medulloblastoma is highly radioresponsive, and recent treatment results have improved greatly since the introduction of megavoltage machine in 1960s. There is increasing evidence for the potential cure of medulloblastoma if properly treated in its early stages. The curable group represents approximately 75% of diagnosed patients. Long‐term treatment effects were examined in this study. The study reveals age‐dependent late effects in learning ability; the patients less than 4‐years‐old at treatment had major learning problems; patients of 5 to 7 years old performed at satisfactory‐to‐low passing levels in school work; patients older than 8 years old had no major intellectual impairment. Short stature was common when growth potential was present at the time of therapy, but endocrine tests were generally negative. These observations indicate special educational requirement needs, especially for children treated at a young age.

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