| Contrast enhanced axial CT scan  demonstrates unroofing
      of the spinal canal from the C2 to the C7 with bilateral laminectomies and
      removal of the spinous processes. There is a fluid collection without
      significant rim enhancement in the post surgical bed at the C2 level,
      posterior to the spinal canal. Within this, there is some air. The fluid
      collection appears to extend inferiorly to the C3 level, and then a small
      slit of fluid continues inferiorly to the C5 - 6 level (not shown), where it appears
      to communicate with the midline incision . |