Article Figures & Data
Figures
- Fig 1.
Lateral (A) and open-mouth odontoid (B) conventional radiographs of the cervical spine show the osteodestructive lesion in C2.
- Fig 2.
Preinterventional postgadolinium T1-weighted MR images of the cervical spine in the axial (A), sagittal (B), and coronal (C) planes show an irregular, enhancing, expansile lesion in the body and the lamina of C2 surrounding the right (dominant) vertebral artery.
- Fig 3.
3D CT planning and reconstruction scan (A) of the upper cervical spine depicts the multicystic lesion and superimposed C1 (green) as well as the vertebral arteries (red). The trajectory of the biopsy needle can be seen in three subsequent axial CT scans (B).
- Fig 4.
Postinterventional CT scans of the head with Ethibloc filling of the vertebrobasilar system (A), causing cerebellar and brain stem infarction. Signal intensity changes in the brain stem and the cerebellum, cerebellar swelling with brain stem compression, and up- and downward herniation are shown on axial FLAIR, sagittal T1-weighted, and coronal T2-weighted MR images (B).
- Fig 5.
Histopathologic section from autopsy shows Ethibloc (purple staining material) together with recent thrombus filling a side branch of the right vertebral artery (RVA). The side branch is distended, with necrosis of the arterial wall (arrows). Osteoid (O) and loose fibrovascular tissue of the aneurysmal bone cyst is seen on both sides of the arterial branch. Sectioning artifact (SA) is also seen. (Block 28, C2 vertebra, level 352, Movat’s pentachrome stain, ×20 original magnification.)
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