title: Computed tomographic findings of vacuum phenomenon in cervical intervertebral disks.
abstract: A gaseous collection in the intervertebral space, or the vacuum phenomenon, was observed on computed tomograms in as many as 30% of the patients with cervical disk disease. The condition most frequently occurred at the level of C5-6. The gas tended to accumulate more often at the marginal region of the intervertebral disks, the level at which marked degeneration was seen; thus, it may be related to cracks within not only the nucleus pulposus, but also in the annulus fibrosus.
mesh_terms: D000368:Aged; D002574:Cervical Vertebrae; D005260:Female; D005740:Gases; D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D009584:Nitrogen; D013122:Spinal Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D013128:Spinal Osteophytosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
chemical_list: D005740:Gases; D009584:Nitrogen