Fig 5. A and B, Right orbital/periorbital lymphatic malformation with right posterior dural AVM.

A, Axial T2-weighted image shows the orbital and periorbital low-flow vascular malformation as dilation of the right transverse sinus which has flow voids in its wall. Associated right hemispheric atrophy is indicated by dilation of the temporal horn of the right lateral ventricle.

B, Gradient recalled-echo sequence confirms the high-flow nature of this dural sinus lesion.