Toddler with developmental delay who had a seizure and fell on the floor

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.

The diagnosis was hypoparathyroidism in a patient with cavum septum pellucidum and cavum vergae.