Cavum Septum Pellucidum

  • Etiology: Anatomic variation
  • Imaging: Cerebrospinal fluid space between leaflets of septum pellucidum
  • DDX:
  • Complications:
  • Treatment:
  • Clinical:

Radiology Cases of Cavum Septum Pellucidum

Radiology Cases of Cavum Septum Pellucidum

MR of cavum septum pellucidum
Axial FLAIR (left) and coronal T1 MRI without contrast of the brain show an oval-shaped CSF space between the leaflets of the septum pellucidum in the center of the brain.

Radiology Cases of Cavum Septum Pellucidum and Cavum Vergae

CT of cavum vergae
Axial CT without contrast of the brain show a cystic structure that is a posterior extension of cavum septum pellucidum, posterior to anterior columns of the fornix, and anterior to the splenium of the corpus callosum.

Radiology Cases of Cavum Septum Pellucidum and Cavum Vergae and Hypoparathyroidism

Head CT of hypoparathyroidism and cavum septum pellucidum and cavum vergae
Axial (above) and coronal (below) CT without contrast of the brain shows multiple bilateral calcifications in the subcortical white matter. There are additional CSF spaces present between the leaflets of the septum pellucidum and anterior to the splenium of the corpus callosum.