Medical and pediatric oncology
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To investigate the value of surveillance scanning for the detection of recurrences in medulloblastoma. ⋯ In our study, surveillance scanning brought no survival advantage since it detected a minority of recurrences. Longer survival achieved by early detection of recurrences might be a reflection of lead-time and length biases. Surveillance procedures will gain more importance as new effective therapeutic options are developed for recurrent medulloblastoma.