PMC4728328_01
Transverse CT image of the cervical spine at the level of C3-C4 (Case 1). Mineral-attenuating material is apparent in the left intervertebral foramen (arrow). There is also mineralization of the nucleus pulposus that remains in situ.
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F2
At C3-C4, the intervertebral disk space was collapsed and a large amount of mineral-attenuating material was present in the left intervertebral foramen, displacing the perineural fat (Figure 2).
PMC4728328_02
PMC4728328_03
PMC4728328_04
PMC4728328_05
Transverse T1-weighted (A) and T2-weighted (B) MR images of the cervical spine at the level of C6-C7 (Case 5). Hypointense extruded disk material is noted within the left intervertebral foramen on both sequences (arrows).
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F3
T2W and STIR sequences with mild contrast enhancement on T1W sequence (Figure 3). This material resulted in mild left sixth spinal nerve root compression and minimal extradural spinal cord compression.