• Etiology: small blue cell tumor
  • Imaging: well defined, homogenous, enhancing inferior medullary velum mass, hydrocephalus
  • CT: dense
  • MRI: T1+T2 isointense, restricted diffusion
  • Complications: CSF spread seen 30% of time at presentation – indistinct folia / sulci on T1, leptomeningeal enhancement, sugar coating of cord / drop metastases
  • Clinical: among older children + adults, can originate off midline such as from Foramen of Lushka

Radiology Cases of Medulloblastoma