Figure 2.

(a) Axial view (b) Sagittal view, and (c) three-dimensional reconstructed bony window image of plain computed tomography head of the patient showing bony defect in parieto-occipital region near junction of lambdoid suture with sagittal suture with hypodense cyst in posterior fossa which is communicating with fourth ventricle. (d) Digital subtraction angiogram of the patient in lateral view showing elevated torcula with splaying of transverse sinus with minimal herniation of vasculature through defect