The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.

Purpose of This PDQ Summary ¹

Added text ² about the levels-of-evidence designations that follows some reference citations.

Recurrent Childhood Medulloblastoma ³

Added text ⁴ to state that for children who were treated at the time of diagnosis with chemotherapy alone and developed local recurrence, long-term disease control may be obtained after further treatment with high-dose chemotherapy plus local radiation therapy (cited Ridola et. al as reference 7).