Parietal Foramina

  • Etiology: normal anatomic variant
  • Imaging: foramina on each side of the posterior aspect of the parietal bone near the sagittal suture transmiting emissary veins
  • Clinical: usually asymptomatic + found incidentally

Radiology Cases of Parietal Foramina

CT of parietal foramina
Axial (above left) and coronal (above right) and 3D recon (below) of a CT without contrast of the brain show bilateral large holes in the skull, just medial to midline, in the posterior parietal region.