Mega Cisterna Magna

  • Etiology:
  • Imaging: (radiograph, CXR, AXR, US, CT, MRI)
  • DDX:
  • Complications:
  • Treatment:
  • Clinical:

Radiology Cases of Mega Cisterna Magna

MRI of mega cisterna magna
Sagittal (above left), coronal (above right), and axial (below) T1 MRI without contrast of the brain shows a prominent retrocerebellar cerebrospinal fluid space (the cisterna magna) with a normal vermis, normal 4th ventricle, and normal cerebellar hemispheres.