Collaborative Hypertext of Radiology

leptomeningeal cyst

"growing skull fracture"

trauma ==>
- skull fx with tear of dura
- herniation of fluid-filled arachnoid tissue
- cyst walled off by subarchnoid adhesions
XR: oval area of bony erosion with scalloped margins
may result in acquired encephalocele

Charles E. Kahn, Jr., MD - 2 February 1995
Last updated: 1 October 2013