Pseudotumor vermis

Pseudotumor vermis

  • Pseudotumor vermis is an aberrant CT finding that can be misinterpreted as early medulloblastoma
  • Normal gray matter of cerebellar vermis (median portion of cerebellum) at times will enhance with contrast medium, simulating early medulloblastoma on CT scan 
  • Selective viewing of MRI scan will distinguish physiologic pseudotumor vermis from pathologic medulloblastoma
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