Medulloblastoma: atypical CT and MRI findings in children

Pediatr Radiol. 2010 Jul;40(7):1254-62. doi: 10.1007/s00247-009-1429-9. Epub 2010 Apr 13.


Posterior fossa mass lesions in children usually present a diagnostic challenge despite their high frequency and the limited number of differential diagnostic possibilities. Consideration of medulloblastoma within the differential diagnosis of such lesions mandates an aggressive surgical approach as residual tumor is a known risk factor for poor prognosis. Preoperative imaging of the entire neuroaxis is critical given the high propensity of drop metastases. In this pictorial presentation, we review and demonstrate less common features of medulloblastomas to facilitate diagnosis in challenging cases.

Publication types

  • Review

MeSH terms

  • Brain / diagnostic imaging*
  • Brain / pathology*
  • Brain Neoplasms / diagnosis*
  • Child
  • Diagnosis, Differential
  • Female
  • Humans
  • Magnetic Resonance Imaging / methods
  • Male
  • Medulloblastoma / diagnosis*
  • Tomography, X-Ray Computed / methods*