Extraneural metastases of medulloblastoma: desmoplastic variants may have prolonged survival.

Background: Extraneural metastases from CNS medulloblastoma are rare and poorly described. The purpose of this study is to describe the clinical and radiological characteristics of a large single institution series of patients with medulloblastoma who developed extraneural metastases.

Procedure: We retrospectively reviewed a departmental database over a 20 year period for all patients with medulloblastoma who developed extraneural metastases.